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Finding the Fourth Proportional to 663,613.70, 995,420.55 and 164,977.70

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Solution

The fourth proportional to 663,613.70, 995,420.55 and 164,977.70 is: 247,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,613.70 : 995,420.55 = 164,977.70 : x
  2. Step 2: Convert to fraction form
    663,613.70/995,420.55 = 164,977.70/x
  3. Step 3: Cross multiply
    663,613.70x = 995,420.55 × 164,977.70
  4. Step 4: Simplify right side
    663,613.70x = 164,222,192,871.74
  5. Step 5: Solve for x
    x = 164,222,192,871.74/663,613.70
  6. Step 6: Final answer
    x = 247,466.55

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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.