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Finding the Fourth Proportional to 960,686,250.62, 1,439,382,695.94 and 644,960,957.90

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Solution

The fourth proportional to 960,686,250.62, 1,439,382,695.94 and 644,960,957.90 is: 966,335,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,686,250.62 : 1,439,382,695.94 = 644,960,957.90 : x
  2. Step 2: Convert to fraction form
    960,686,250.62/1,439,382,695.94 = 644,960,957.90/x
  3. Step 3: Cross multiply
    960,686,250.62x = 1,439,382,695.94 × 644,960,957.90
  4. Step 4: Simplify right side
    960,686,250.62x = 928,345,642,350,949,888
  5. Step 5: Solve for x
    x = 928,345,642,350,949,888/960,686,250.62
  6. Step 6: Final answer
    x = 966,335,930.96

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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.