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Finding the Fourth Proportional to 435,455,679.71, 600,928,573.07 and 239,885,391.71

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Solution

The fourth proportional to 435,455,679.71, 600,928,573.07 and 239,885,391.71 is: 331,041,694.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,455,679.71 : 600,928,573.07 = 239,885,391.71 : x
  2. Step 2: Convert to fraction form
    435,455,679.71/600,928,573.07 = 239,885,391.71/x
  3. Step 3: Cross multiply
    435,455,679.71x = 600,928,573.07 × 239,885,391.71
  4. Step 4: Simplify right side
    435,455,679.71x = 144,153,986,142,730,336
  5. Step 5: Solve for x
    x = 144,153,986,142,730,336/435,455,679.71
  6. Step 6: Final answer
    x = 331,041,694.62

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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.