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Finding the Fourth Proportional to 549,289.65, 757,932.03 and 307,582.41

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Solution

The fourth proportional to 549,289.65, 757,932.03 and 307,582.41 is: 424,414.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,289.65 : 757,932.03 = 307,582.41 : x
  2. Step 2: Convert to fraction form
    549,289.65/757,932.03 = 307,582.41/x
  3. Step 3: Cross multiply
    549,289.65x = 757,932.03 × 307,582.41
  4. Step 4: Simplify right side
    549,289.65x = 233,126,560,403.59
  5. Step 5: Solve for x
    x = 233,126,560,403.59/549,289.65
  6. Step 6: Final answer
    x = 424,414.62

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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.