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Finding the Fourth Proportional to 424,534.56, 585,862.53 and 243,242.85

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Solution

The fourth proportional to 424,534.56, 585,862.53 and 243,242.85 is: 335,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,534.56 : 585,862.53 = 243,242.85 : x
  2. Step 2: Convert to fraction form
    424,534.56/585,862.53 = 243,242.85/x
  3. Step 3: Cross multiply
    424,534.56x = 585,862.53 × 243,242.85
  4. Step 4: Simplify right side
    424,534.56x = 142,506,871,505.41
  5. Step 5: Solve for x
    x = 142,506,871,505.41/424,534.56
  6. Step 6: Final answer
    x = 335,677.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.