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Finding the Fourth Proportional to 423,398.55, 584,286.45 and 232,400.55

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Solution

The fourth proportional to 423,398.55, 584,286.45 and 232,400.55 is: 320,710.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,398.55 : 584,286.45 = 232,400.55 : x
  2. Step 2: Convert to fraction form
    423,398.55/584,286.45 = 232,400.55/x
  3. Step 3: Cross multiply
    423,398.55x = 584,286.45 × 232,400.55
  4. Step 4: Simplify right side
    423,398.55x = 135,788,492,337.55
  5. Step 5: Solve for x
    x = 135,788,492,337.55/423,398.55
  6. Step 6: Final answer
    x = 320,710.81

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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.