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Finding the Fourth Proportional to 453,158.72, 625,203.28 and 281,014.80

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Solution

The fourth proportional to 453,158.72, 625,203.28 and 281,014.80 is: 387,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,158.72 : 625,203.28 = 281,014.80 : x
  2. Step 2: Convert to fraction form
    453,158.72/625,203.28 = 281,014.80/x
  3. Step 3: Cross multiply
    453,158.72x = 625,203.28 × 281,014.80
  4. Step 4: Simplify right side
    453,158.72x = 175,691,374,688.54
  5. Step 5: Solve for x
    x = 175,691,374,688.54/453,158.72
  6. Step 6: Final answer
    x = 387,703.84

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1.5x scale

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.