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Finding the Fourth Proportional to 404,642.73, 558,407.00 and 223,354.70

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Solution

The fourth proportional to 404,642.73, 558,407.00 and 223,354.70 is: 308,229.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,642.73 : 558,407.00 = 223,354.70 : x
  2. Step 2: Convert to fraction form
    404,642.73/558,407.00 = 223,354.70/x
  3. Step 3: Cross multiply
    404,642.73x = 558,407.00 × 223,354.70
  4. Step 4: Simplify right side
    404,642.73x = 124,722,828,242.14
  5. Step 5: Solve for x
    x = 124,722,828,242.14/404,642.73
  6. Step 6: Final answer
    x = 308,229.50

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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.