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Finding the Fourth Proportional to 593,616.40, 891,115.80 and 384,125.20

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Solution

The fourth proportional to 593,616.40, 891,115.80 and 384,125.20 is: 576,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,616.40 : 891,115.80 = 384,125.20 : x
  2. Step 2: Convert to fraction form
    593,616.40/891,115.80 = 384,125.20/x
  3. Step 3: Cross multiply
    593,616.40x = 891,115.80 × 384,125.20
  4. Step 4: Simplify right side
    593,616.40x = 342,300,034,898.16
  5. Step 5: Solve for x
    x = 342,300,034,898.16/593,616.40
  6. Step 6: Final answer
    x = 576,635.07

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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.