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Finding the Fourth Proportional to 424,869.86, 586,327.86 and 231,283.12

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Solution

The fourth proportional to 424,869.86, 586,327.86 and 231,283.12 is: 319,174.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,869.86 : 586,327.86 = 231,283.12 : x
  2. Step 2: Convert to fraction form
    424,869.86/586,327.86 = 231,283.12/x
  3. Step 3: Cross multiply
    424,869.86x = 586,327.86 × 231,283.12
  4. Step 4: Simplify right side
    424,869.86x = 135,607,736,803.72
  5. Step 5: Solve for x
    x = 135,607,736,803.72/424,869.86
  6. Step 6: Final answer
    x = 319,174.76

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1.5x scale

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.