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Finding the Fourth Proportional to 358,796,691.40, 502,655,490.20 and 358,796,691.40

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Solution

The fourth proportional to 358,796,691.40, 502,655,490.20 and 358,796,691.40 is: 502,655,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,796,691.40 : 502,655,490.20 = 358,796,691.40 : x
  2. Step 2: Convert to fraction form
    358,796,691.40/502,655,490.20 = 358,796,691.40/x
  3. Step 3: Cross multiply
    358,796,691.40x = 502,655,490.20 × 358,796,691.40
  4. Step 4: Simplify right side
    358,796,691.40x = 180,351,126,797,805,120
  5. Step 5: Solve for x
    x = 180,351,126,797,805,120/358,796,691.40
  6. Step 6: Final answer
    x = 502,655,490.20

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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.