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Finding the Fourth Proportional to 438,778.50, 605,514.33 and 237,574.50

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Solution

The fourth proportional to 438,778.50, 605,514.33 and 237,574.50 is: 327,852.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,778.50 : 605,514.33 = 237,574.50 : x
  2. Step 2: Convert to fraction form
    438,778.50/605,514.33 = 237,574.50/x
  3. Step 3: Cross multiply
    438,778.50x = 605,514.33 × 237,574.50
  4. Step 4: Simplify right side
    438,778.50x = 143,854,764,192.59
  5. Step 5: Solve for x
    x = 143,854,764,192.59/438,778.50
  6. Step 6: Final answer
    x = 327,852.81

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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.