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Finding the Fourth Proportional to 489,979.59, 735,177.38 and 237,448.05

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Solution

The fourth proportional to 489,979.59, 735,177.38 and 237,448.05 is: 356,272.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,979.59 : 735,177.38 = 237,448.05 : x
  2. Step 2: Convert to fraction form
    489,979.59/735,177.38 = 237,448.05/x
  3. Step 3: Cross multiply
    489,979.59x = 735,177.38 × 237,448.05
  4. Step 4: Simplify right side
    489,979.59x = 174,566,434,097.87
  5. Step 5: Solve for x
    x = 174,566,434,097.87/489,979.59
  6. Step 6: Final answer
    x = 356,272.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.