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Finding the Fourth Proportional to 514,836.92, 709,687.40 and 361,444.80

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Solution

The fourth proportional to 514,836.92, 709,687.40 and 361,444.80 is: 498,240.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,836.92 : 709,687.40 = 361,444.80 : x
  2. Step 2: Convert to fraction form
    514,836.92/709,687.40 = 361,444.80/x
  3. Step 3: Cross multiply
    514,836.92x = 709,687.40 × 361,444.80
  4. Step 4: Simplify right side
    514,836.92x = 256,512,820,355.52
  5. Step 5: Solve for x
    x = 256,512,820,355.52/514,836.92
  6. Step 6: Final answer
    x = 498,240.92

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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.