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Finding the Fourth Proportional to 625,882,080.08, 863,741,561.31 and 343,636,417.57

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Solution

The fourth proportional to 625,882,080.08, 863,741,561.31 and 343,636,417.57 is: 474,231,592.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,882,080.08 : 863,741,561.31 = 343,636,417.57 : x
  2. Step 2: Convert to fraction form
    625,882,080.08/863,741,561.31 = 343,636,417.57/x
  3. Step 3: Cross multiply
    625,882,080.08x = 863,741,561.31 × 343,636,417.57
  4. Step 4: Simplify right side
    625,882,080.08x = 296,813,055,834,886,912
  5. Step 5: Solve for x
    x = 296,813,055,834,886,912/625,882,080.08
  6. Step 6: Final answer
    x = 474,231,592.95

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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.