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Finding the Fourth Proportional to 404,257,411.80, 606,386,117.70 and 373,646,410.20

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Solution

The fourth proportional to 404,257,411.80, 606,386,117.70 and 373,646,410.20 is: 560,469,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,257,411.80 : 606,386,117.70 = 373,646,410.20 : x
  2. Step 2: Convert to fraction form
    404,257,411.80/606,386,117.70 = 373,646,410.20/x
  3. Step 3: Cross multiply
    404,257,411.80x = 606,386,117.70 × 373,646,410.20
  4. Step 4: Simplify right side
    404,257,411.80x = 226,573,996,073,719,680
  5. Step 5: Solve for x
    x = 226,573,996,073,719,680/404,257,411.80
  6. Step 6: Final answer
    x = 560,469,615.30

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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.