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Finding the Fourth Proportional to 267,509,947.20, 401,264,920.80 and 226,695,278.40

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Solution

The fourth proportional to 267,509,947.20, 401,264,920.80 and 226,695,278.40 is: 340,042,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,509,947.20 : 401,264,920.80 = 226,695,278.40 : x
  2. Step 2: Convert to fraction form
    267,509,947.20/401,264,920.80 = 226,695,278.40/x
  3. Step 3: Cross multiply
    267,509,947.20x = 401,264,920.80 × 226,695,278.40
  4. Step 4: Simplify right side
    267,509,947.20x = 90,964,862,932,909,952
  5. Step 5: Solve for x
    x = 90,964,862,932,909,952/267,509,947.20
  6. Step 6: Final answer
    x = 340,042,917.60

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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.