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Finding the Fourth Proportional to 527,998.20, 791,997.30 and 317,873.40

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Solution

The fourth proportional to 527,998.20, 791,997.30 and 317,873.40 is: 476,810.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,998.20 : 791,997.30 = 317,873.40 : x
  2. Step 2: Convert to fraction form
    527,998.20/791,997.30 = 317,873.40/x
  3. Step 3: Cross multiply
    527,998.20x = 791,997.30 × 317,873.40
  4. Step 4: Simplify right side
    527,998.20x = 251,754,874,541.82
  5. Step 5: Solve for x
    x = 251,754,874,541.82/527,998.20
  6. Step 6: Final answer
    x = 476,810.10

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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.