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Finding the Fourth Proportional to 619,593.90, 929,401.10 and 170,312.01

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Solution

The fourth proportional to 619,593.90, 929,401.10 and 170,312.01 is: 255,470.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,593.90 : 929,401.10 = 170,312.01 : x
  2. Step 2: Convert to fraction form
    619,593.90/929,401.10 = 170,312.01/x
  3. Step 3: Cross multiply
    619,593.90x = 929,401.10 × 170,312.01
  4. Step 4: Simplify right side
    619,593.90x = 158,288,169,437.21
  5. Step 5: Solve for x
    x = 158,288,169,437.21/619,593.90
  6. Step 6: Final answer
    x = 255,470.83

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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.