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Finding the Fourth Proportional to 453,159.72, 625,204.66 and 281,015.80

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Solution

The fourth proportional to 453,159.72, 625,204.66 and 281,015.80 is: 387,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,159.72 : 625,204.66 = 281,015.80 : x
  2. Step 2: Convert to fraction form
    453,159.72/625,204.66 = 281,015.80/x
  3. Step 3: Cross multiply
    453,159.72x = 625,204.66 × 281,015.80
  4. Step 4: Simplify right side
    453,159.72x = 175,692,387,693.63
  5. Step 5: Solve for x
    x = 175,692,387,693.63/453,159.72
  6. Step 6: Final answer
    x = 387,705.22

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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.