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Finding the Fourth Proportional to 650,658.20, 897,919.41 and 356,333.81

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Solution

The fourth proportional to 650,658.20, 897,919.41 and 356,333.81 is: 491,746.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,658.20 : 897,919.41 = 356,333.81 : x
  2. Step 2: Convert to fraction form
    650,658.20/897,919.41 = 356,333.81/x
  3. Step 3: Cross multiply
    650,658.20x = 897,919.41 × 356,333.81
  4. Step 4: Simplify right side
    650,658.20x = 319,959,039,948.66
  5. Step 5: Solve for x
    x = 319,959,039,948.66/650,658.20
  6. Step 6: Final answer
    x = 491,746.73

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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.