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Finding the Fourth Proportional to 397,281.20, 595,921.80 and 397,281.20

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Solution

The fourth proportional to 397,281.20, 595,921.80 and 397,281.20 is: 595,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,281.20 : 595,921.80 = 397,281.20 : x
  2. Step 2: Convert to fraction form
    397,281.20/595,921.80 = 397,281.20/x
  3. Step 3: Cross multiply
    397,281.20x = 595,921.80 × 397,281.20
  4. Step 4: Simplify right side
    397,281.20x = 236,748,527,810.16
  5. Step 5: Solve for x
    x = 236,748,527,810.16/397,281.20
  6. Step 6: Final answer
    x = 595,921.80

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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.