Home / 816,588.50-1,126,891.10-454,000.91

Finding the Fourth Proportional to 816,588.50, 1,126,891.10 and 454,000.91

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Solution

The fourth proportional to 816,588.50, 1,126,891.10 and 454,000.91 is: 626,520.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,588.50 : 1,126,891.10 = 454,000.91 : x
  2. Step 2: Convert to fraction form
    816,588.50/1,126,891.10 = 454,000.91/x
  3. Step 3: Cross multiply
    816,588.50x = 1,126,891.10 × 454,000.91
  4. Step 4: Simplify right side
    816,588.50x = 511,609,580,371.45
  5. Step 5: Solve for x
    x = 511,609,580,371.45/816,588.50
  6. Step 6: Final answer
    x = 626,520.68

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Double scale
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Similar ratio
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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.