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Finding the Fourth Proportional to 508,387.68, 701,572.86 and 282,033.18

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Solution

The fourth proportional to 508,387.68, 701,572.86 and 282,033.18 is: 389,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,387.68 : 701,572.86 = 282,033.18 : x
  2. Step 2: Convert to fraction form
    508,387.68/701,572.86 = 282,033.18/x
  3. Step 3: Cross multiply
    508,387.68x = 701,572.86 × 282,033.18
  4. Step 4: Simplify right side
    508,387.68x = 197,866,824,707.50
  5. Step 5: Solve for x
    x = 197,866,824,707.50/508,387.68
  6. Step 6: Final answer
    x = 389,204.60

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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.