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Finding the Fourth Proportional to 541,914.67, 747,689.52 and 312,453.91

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Solution

The fourth proportional to 541,914.67, 747,689.52 and 312,453.91 is: 431,098.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,914.67 : 747,689.52 = 312,453.91 : x
  2. Step 2: Convert to fraction form
    541,914.67/747,689.52 = 312,453.91/x
  3. Step 3: Cross multiply
    541,914.67x = 747,689.52 × 312,453.91
  4. Step 4: Simplify right side
    541,914.67x = 233,618,513,990.02
  5. Step 5: Solve for x
    x = 233,618,513,990.02/541,914.67
  6. Step 6: Final answer
    x = 431,098.34

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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.