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Finding the Fourth Proportional to 524,956,472.40, 787,340,230.20 and 330,519,925.20

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Solution

The fourth proportional to 524,956,472.40, 787,340,230.20 and 330,519,925.20 is: 495,720,402.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,956,472.40 : 787,340,230.20 = 330,519,925.20 : x
  2. Step 2: Convert to fraction form
    524,956,472.40/787,340,230.20 = 330,519,925.20/x
  3. Step 3: Cross multiply
    524,956,472.40x = 787,340,230.20 × 330,519,925.20
  4. Step 4: Simplify right side
    524,956,472.40x = 260,231,633,992,654,784
  5. Step 5: Solve for x
    x = 260,231,633,992,654,784/524,956,472.40
  6. Step 6: Final answer
    x = 495,720,402.88

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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.