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Finding the Fourth Proportional to 628,592,783.70, 942,889,175.55 and 628,592,783.70

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Solution

The fourth proportional to 628,592,783.70, 942,889,175.55 and 628,592,783.70 is: 942,889,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,592,783.70 : 942,889,175.55 = 628,592,783.70 : x
  2. Step 2: Convert to fraction form
    628,592,783.70/942,889,175.55 = 628,592,783.70/x
  3. Step 3: Cross multiply
    628,592,783.70x = 942,889,175.55 × 628,592,783.70
  4. Step 4: Simplify right side
    628,592,783.70x = 592,693,331,579,572,480
  5. Step 5: Solve for x
    x = 592,693,331,579,572,480/628,592,783.70
  6. Step 6: Final answer
    x = 942,889,175.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.