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Finding the Fourth Proportional to 572,718.80, 790,414.61 and 327,726.20

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Solution

The fourth proportional to 572,718.80, 790,414.61 and 327,726.20 is: 452,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,718.80 : 790,414.61 = 327,726.20 : x
  2. Step 2: Convert to fraction form
    572,718.80/790,414.61 = 327,726.20/x
  3. Step 3: Cross multiply
    572,718.80x = 790,414.61 × 327,726.20
  4. Step 4: Simplify right side
    572,718.80x = 259,039,576,897.19
  5. Step 5: Solve for x
    x = 259,039,576,897.19/572,718.80
  6. Step 6: Final answer
    x = 452,298.01

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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.