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Finding the Fourth Proportional to 323,597.77, 485,647.28 and 260,572.22

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Solution

The fourth proportional to 323,597.77, 485,647.28 and 260,572.22 is: 391,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,597.77 : 485,647.28 = 260,572.22 : x
  2. Step 2: Convert to fraction form
    323,597.77/485,647.28 = 260,572.22/x
  3. Step 3: Cross multiply
    323,597.77x = 485,647.28 × 260,572.22
  4. Step 4: Simplify right side
    323,597.77x = 126,546,191,752.11
  5. Step 5: Solve for x
    x = 126,546,191,752.11/323,597.77
  6. Step 6: Final answer
    x = 391,060.15

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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.