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Finding the Fourth Proportional to 650,281.91, 897,695.87 and 489,198.42

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Solution

The fourth proportional to 650,281.91, 897,695.87 and 489,198.42 is: 675,324.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,281.91 : 897,695.87 = 489,198.42 : x
  2. Step 2: Convert to fraction form
    650,281.91/897,695.87 = 489,198.42/x
  3. Step 3: Cross multiply
    650,281.91x = 897,695.87 × 489,198.42
  4. Step 4: Simplify right side
    650,281.91x = 439,151,398,798.53
  5. Step 5: Solve for x
    x = 439,151,398,798.53/650,281.91
  6. Step 6: Final answer
    x = 675,324.65

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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.