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Finding the Fourth Proportional to 404,894,562.80, 607,341,844.20 and 386,082,863.60

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Solution

The fourth proportional to 404,894,562.80, 607,341,844.20 and 386,082,863.60 is: 579,124,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,894,562.80 : 607,341,844.20 = 386,082,863.60 : x
  2. Step 2: Convert to fraction form
    404,894,562.80/607,341,844.20 = 386,082,863.60/x
  3. Step 3: Cross multiply
    404,894,562.80x = 607,341,844.20 × 386,082,863.60
  4. Step 4: Simplify right side
    404,894,562.80x = 234,484,278,392,841,088
  5. Step 5: Solve for x
    x = 234,484,278,392,841,088/404,894,562.80
  6. Step 6: Final answer
    x = 579,124,295.40

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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.