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Finding the Fourth Proportional to 650,231.70, 975,347.55 and 206,999.70

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Solution

The fourth proportional to 650,231.70, 975,347.55 and 206,999.70 is: 310,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,231.70 : 975,347.55 = 206,999.70 : x
  2. Step 2: Convert to fraction form
    650,231.70/975,347.55 = 206,999.70/x
  3. Step 3: Cross multiply
    650,231.70x = 975,347.55 × 206,999.70
  4. Step 4: Simplify right side
    650,231.70x = 201,896,650,245.74
  5. Step 5: Solve for x
    x = 201,896,650,245.74/650,231.70
  6. Step 6: Final answer
    x = 310,499.55

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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.