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Finding the Fourth Proportional to 393,595.28, 543,154.68 and 223,825.52

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Solution

The fourth proportional to 393,595.28, 543,154.68 and 223,825.52 is: 308,875.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,595.28 : 543,154.68 = 223,825.52 : x
  2. Step 2: Convert to fraction form
    393,595.28/543,154.68 = 223,825.52/x
  3. Step 3: Cross multiply
    393,595.28x = 543,154.68 × 223,825.52
  4. Step 4: Simplify right side
    393,595.28x = 121,571,878,691.43
  5. Step 5: Solve for x
    x = 121,571,878,691.43/393,595.28
  6. Step 6: Final answer
    x = 308,875.35

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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.