Home / 853,677.40-1,280,516.10-814,311.40

Finding the Fourth Proportional to 853,677.40, 1,280,516.10 and 814,311.40

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Solution

The fourth proportional to 853,677.40, 1,280,516.10 and 814,311.40 is: 1,221,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,677.40 : 1,280,516.10 = 814,311.40 : x
  2. Step 2: Convert to fraction form
    853,677.40/1,280,516.10 = 814,311.40/x
  3. Step 3: Cross multiply
    853,677.40x = 1,280,516.10 × 814,311.40
  4. Step 4: Simplify right side
    853,677.40x = 1,042,738,858,113.54
  5. Step 5: Solve for x
    x = 1,042,738,858,113.54/853,677.40
  6. Step 6: Final answer
    x = 1,221,467.10

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.