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Finding the Fourth Proportional to 423,397.55, 584,285.07 and 232,399.55

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Solution

The fourth proportional to 423,397.55, 584,285.07 and 232,399.55 is: 320,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,397.55 : 584,285.07 = 232,399.55 : x
  2. Step 2: Convert to fraction form
    423,397.55/584,285.07 = 232,399.55/x
  3. Step 3: Cross multiply
    423,397.55x = 584,285.07 × 232,399.55
  4. Step 4: Simplify right side
    423,397.55x = 135,787,587,339.72
  5. Step 5: Solve for x
    x = 135,787,587,339.72/423,397.55
  6. Step 6: Final answer
    x = 320,709.43

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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.