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Finding the Fourth Proportional to 489,193.70, 733,790.55 and 453,764.30

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Solution

The fourth proportional to 489,193.70, 733,790.55 and 453,764.30 is: 680,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,193.70 : 733,790.55 = 453,764.30 : x
  2. Step 2: Convert to fraction form
    489,193.70/733,790.55 = 453,764.30/x
  3. Step 3: Cross multiply
    489,193.70x = 733,790.55 × 453,764.30
  4. Step 4: Simplify right side
    489,193.70x = 332,967,955,267.37
  5. Step 5: Solve for x
    x = 332,967,955,267.37/489,193.70
  6. Step 6: Final answer
    x = 680,646.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.