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Finding the Fourth Proportional to 541,971.60, 748,045.20 and 360,691.20

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Solution

The fourth proportional to 541,971.60, 748,045.20 and 360,691.20 is: 497,836.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,971.60 : 748,045.20 = 360,691.20 : x
  2. Step 2: Convert to fraction form
    541,971.60/748,045.20 = 360,691.20/x
  3. Step 3: Cross multiply
    541,971.60x = 748,045.20 × 360,691.20
  4. Step 4: Simplify right side
    541,971.60x = 269,813,320,842.24
  5. Step 5: Solve for x
    x = 269,813,320,842.24/541,971.60
  6. Step 6: Final answer
    x = 497,836.64

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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.