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Finding the Fourth Proportional to 526,681.71, 726,820.29 and 297,287.28

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Solution

The fourth proportional to 526,681.71, 726,820.29 and 297,287.28 is: 410,256.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,681.71 : 726,820.29 = 297,287.28 : x
  2. Step 2: Convert to fraction form
    526,681.71/726,820.29 = 297,287.28/x
  3. Step 3: Cross multiply
    526,681.71x = 726,820.29 × 297,287.28
  4. Step 4: Simplify right side
    526,681.71x = 216,074,427,062.91
  5. Step 5: Solve for x
    x = 216,074,427,062.91/526,681.71
  6. Step 6: Final answer
    x = 410,256.18

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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.