Home / 644,186.10-966,279.15-455,229.30

Finding the Fourth Proportional to 644,186.10, 966,279.15 and 455,229.30

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Solution

The fourth proportional to 644,186.10, 966,279.15 and 455,229.30 is: 682,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,186.10 : 966,279.15 = 455,229.30 : x
  2. Step 2: Convert to fraction form
    644,186.10/966,279.15 = 455,229.30/x
  3. Step 3: Cross multiply
    644,186.10x = 966,279.15 × 455,229.30
  4. Step 4: Simplify right side
    644,186.10x = 439,878,581,059.10
  5. Step 5: Solve for x
    x = 439,878,581,059.10/644,186.10
  6. Step 6: Final answer
    x = 682,843.95

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Double scale
Find fourth proportional to 644,187.10, 966,280.65 and 455,230.30
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.