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Finding the Fourth Proportional to 576,552,145.70, 864,828,218.55 and 479,617,307.30

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Solution

The fourth proportional to 576,552,145.70, 864,828,218.55 and 479,617,307.30 is: 719,425,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,552,145.70 : 864,828,218.55 = 479,617,307.30 : x
  2. Step 2: Convert to fraction form
    576,552,145.70/864,828,218.55 = 479,617,307.30/x
  3. Step 3: Cross multiply
    576,552,145.70x = 864,828,218.55 × 479,617,307.30
  4. Step 4: Simplify right side
    576,552,145.70x = 414,786,581,458,006,912
  5. Step 5: Solve for x
    x = 414,786,581,458,006,912/576,552,145.70
  6. Step 6: Final answer
    x = 719,425,960.95

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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.