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Finding the Fourth Proportional to 516,708.43, 773,940.95 and 249,909.47

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Solution

The fourth proportional to 516,708.43, 773,940.95 and 249,909.47 is: 374,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,708.43 : 773,940.95 = 249,909.47 : x
  2. Step 2: Convert to fraction form
    516,708.43/773,940.95 = 249,909.47/x
  3. Step 3: Cross multiply
    516,708.43x = 773,940.95 × 249,909.47
  4. Step 4: Simplify right side
    516,708.43x = 193,415,168,756.09
  5. Step 5: Solve for x
    x = 193,415,168,756.09/516,708.43
  6. Step 6: Final answer
    x = 374,321.68

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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.