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Finding the Fourth Proportional to 495,638.60, 743,368.29 and 225,704.02

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Solution

The fourth proportional to 495,638.60, 743,368.29 and 225,704.02 is: 338,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,638.60 : 743,368.29 = 225,704.02 : x
  2. Step 2: Convert to fraction form
    495,638.60/743,368.29 = 225,704.02/x
  3. Step 3: Cross multiply
    495,638.60x = 743,368.29 × 225,704.02
  4. Step 4: Simplify right side
    495,638.60x = 167,781,210,082.53
  5. Step 5: Solve for x
    x = 167,781,210,082.53/495,638.60
  6. Step 6: Final answer
    x = 338,515.22

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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.