Home / 865,861.20-1,298,791.80-546,996.60

Finding the Fourth Proportional to 865,861.20, 1,298,791.80 and 546,996.60

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Solution

The fourth proportional to 865,861.20, 1,298,791.80 and 546,996.60 is: 820,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,861.20 : 1,298,791.80 = 546,996.60 : x
  2. Step 2: Convert to fraction form
    865,861.20/1,298,791.80 = 546,996.60/x
  3. Step 3: Cross multiply
    865,861.20x = 1,298,791.80 × 546,996.60
  4. Step 4: Simplify right side
    865,861.20x = 710,434,698,707.88
  5. Step 5: Solve for x
    x = 710,434,698,707.88/865,861.20
  6. Step 6: Final answer
    x = 820,494.90

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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.