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Finding the Fourth Proportional to 498,193.62, 687,327.57 and 383,507.34

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Solution

The fourth proportional to 498,193.62, 687,327.57 and 383,507.34 is: 529,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,193.62 : 687,327.57 = 383,507.34 : x
  2. Step 2: Convert to fraction form
    498,193.62/687,327.57 = 383,507.34/x
  3. Step 3: Cross multiply
    498,193.62x = 687,327.57 × 383,507.34
  4. Step 4: Simplify right side
    498,193.62x = 263,595,168,079.36
  5. Step 5: Solve for x
    x = 263,595,168,079.36/498,193.62
  6. Step 6: Final answer
    x = 529,101.85

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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.