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Finding the Fourth Proportional to 586,040,493.60, 879,186,711.60 and 177,137,978.40

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Solution

The fourth proportional to 586,040,493.60, 879,186,711.60 and 177,137,978.40 is: 265,745,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,040,493.60 : 879,186,711.60 = 177,137,978.40 : x
  2. Step 2: Convert to fraction form
    586,040,493.60/879,186,711.60 = 177,137,978.40/x
  3. Step 3: Cross multiply
    586,040,493.60x = 879,186,711.60 × 177,137,978.40
  4. Step 4: Simplify right side
    586,040,493.60x = 155,737,356,728,967,840
  5. Step 5: Solve for x
    x = 155,737,356,728,967,840/586,040,493.60
  6. Step 6: Final answer
    x = 265,745,043.95

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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.