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Finding the Fourth Proportional to 611,955,165.60, 918,145,324.80 and 267,156,244.80

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Solution

The fourth proportional to 611,955,165.60, 918,145,324.80 and 267,156,244.80 is: 400,827,169.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,955,165.60 : 918,145,324.80 = 267,156,244.80 : x
  2. Step 2: Convert to fraction form
    611,955,165.60/918,145,324.80 = 267,156,244.80/x
  3. Step 3: Cross multiply
    611,955,165.60x = 918,145,324.80 × 267,156,244.80
  4. Step 4: Simplify right side
    611,955,165.60x = 245,288,257,154,244,320
  5. Step 5: Solve for x
    x = 245,288,257,154,244,320/611,955,165.60
  6. Step 6: Final answer
    x = 400,827,169.93

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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.