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Finding the Fourth Proportional to 654,855.52, 903,691.20 and 364,465.12

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Solution

The fourth proportional to 654,855.52, 903,691.20 and 364,465.12 is: 502,956.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,855.52 : 903,691.20 = 364,465.12 : x
  2. Step 2: Convert to fraction form
    654,855.52/903,691.20 = 364,465.12/x
  3. Step 3: Cross multiply
    654,855.52x = 903,691.20 × 364,465.12
  4. Step 4: Simplify right side
    654,855.52x = 329,363,921,650.94
  5. Step 5: Solve for x
    x = 329,363,921,650.94/654,855.52
  6. Step 6: Final answer
    x = 502,956.62

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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.