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Finding the Fourth Proportional to 386,472.67, 533,332.45 and 235,569.67

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Solution

The fourth proportional to 386,472.67, 533,332.45 and 235,569.67 is: 325,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,472.67 : 533,332.45 = 235,569.67 : x
  2. Step 2: Convert to fraction form
    386,472.67/533,332.45 = 235,569.67/x
  3. Step 3: Cross multiply
    386,472.67x = 533,332.45 × 235,569.67
  4. Step 4: Simplify right side
    386,472.67x = 125,636,948,207.92
  5. Step 5: Solve for x
    x = 125,636,948,207.92/386,472.67
  6. Step 6: Final answer
    x = 325,086.24

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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.