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Finding the Fourth Proportional to 482,720.40, 723,861.90 and 183,101.40

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Solution

The fourth proportional to 482,720.40, 723,861.90 and 183,101.40 is: 274,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,720.40 : 723,861.90 = 183,101.40 : x
  2. Step 2: Convert to fraction form
    482,720.40/723,861.90 = 183,101.40/x
  3. Step 3: Cross multiply
    482,720.40x = 723,861.90 × 183,101.40
  4. Step 4: Simplify right side
    482,720.40x = 132,540,127,296.66
  5. Step 5: Solve for x
    x = 132,540,127,296.66/482,720.40
  6. Step 6: Final answer
    x = 274,569.14

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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.