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Finding the Fourth Proportional to 404,645.73, 558,411.14 and 223,357.71

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Solution

The fourth proportional to 404,645.73, 558,411.14 and 223,357.71 is: 308,233.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,645.73 : 558,411.14 = 223,357.71 : x
  2. Step 2: Convert to fraction form
    404,645.73/558,411.14 = 223,357.71/x
  3. Step 3: Cross multiply
    404,645.73x = 558,411.14 × 223,357.71
  4. Step 4: Simplify right side
    404,645.73x = 124,725,432,352.10
  5. Step 5: Solve for x
    x = 124,725,432,352.10/404,645.73
  6. Step 6: Final answer
    x = 308,233.66

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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.