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Finding the Fourth Proportional to 688,801.71, 950,481.11 and 382,841.76

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Solution

The fourth proportional to 688,801.71, 950,481.11 and 382,841.76 is: 528,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,801.71 : 950,481.11 = 382,841.76 : x
  2. Step 2: Convert to fraction form
    688,801.71/950,481.11 = 382,841.76/x
  3. Step 3: Cross multiply
    688,801.71x = 950,481.11 × 382,841.76
  4. Step 4: Simplify right side
    688,801.71x = 363,883,859,084.95
  5. Step 5: Solve for x
    x = 363,883,859,084.95/688,801.71
  6. Step 6: Final answer
    x = 528,285.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.