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Finding the Fourth Proportional to 628,593,010.20, 942,889,515.30 and 628,593,010.20

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Solution

The fourth proportional to 628,593,010.20, 942,889,515.30 and 628,593,010.20 is: 942,889,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,593,010.20 : 942,889,515.30 = 628,593,010.20 : x
  2. Step 2: Convert to fraction form
    628,593,010.20/942,889,515.30 = 628,593,010.20/x
  3. Step 3: Cross multiply
    628,593,010.20x = 942,889,515.30 × 628,593,010.20
  4. Step 4: Simplify right side
    628,593,010.20x = 592,693,758,708,445,952
  5. Step 5: Solve for x
    x = 592,693,758,708,445,952/628,593,010.20
  6. Step 6: Final answer
    x = 942,889,515.30

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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.