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Finding the Fourth Proportional to 579,726,861.60, 809,895,737.40 and 579,726,861.60

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Solution

The fourth proportional to 579,726,861.60, 809,895,737.40 and 579,726,861.60 is: 809,895,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,726,861.60 : 809,895,737.40 = 579,726,861.60 : x
  2. Step 2: Convert to fraction form
    579,726,861.60/809,895,737.40 = 579,726,861.60/x
  3. Step 3: Cross multiply
    579,726,861.60x = 809,895,737.40 × 579,726,861.60
  4. Step 4: Simplify right side
    579,726,861.60x = 469,518,314,066,119,744
  5. Step 5: Solve for x
    x = 469,518,314,066,119,744/579,726,861.60
  6. Step 6: Final answer
    x = 809,895,737.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.