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Finding the Fourth Proportional to 363,079.30, 545,931.15 and 355,206.10

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Solution

The fourth proportional to 363,079.30, 545,931.15 and 355,206.10 is: 534,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,079.30 : 545,931.15 = 355,206.10 : x
  2. Step 2: Convert to fraction form
    363,079.30/545,931.15 = 355,206.10/x
  3. Step 3: Cross multiply
    363,079.30x = 545,931.15 × 355,206.10
  4. Step 4: Simplify right side
    363,079.30x = 193,918,074,660.02
  5. Step 5: Solve for x
    x = 193,918,074,660.02/363,079.30
  6. Step 6: Final answer
    x = 534,092.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.