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Finding the Fourth Proportional to 549,231.97, 757,954.20 and 307,565.62

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Solution

The fourth proportional to 549,231.97, 757,954.20 and 307,565.62 is: 424,448.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,231.97 : 757,954.20 = 307,565.62 : x
  2. Step 2: Convert to fraction form
    549,231.97/757,954.20 = 307,565.62/x
  3. Step 3: Cross multiply
    549,231.97x = 757,954.20 × 307,565.62
  4. Step 4: Simplify right side
    549,231.97x = 233,120,653,454.60
  5. Step 5: Solve for x
    x = 233,120,653,454.60/549,231.97
  6. Step 6: Final answer
    x = 424,448.44

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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.