Home / 856,514.90-1,284,772.35-574,505.30

Finding the Fourth Proportional to 856,514.90, 1,284,772.35 and 574,505.30

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Solution

The fourth proportional to 856,514.90, 1,284,772.35 and 574,505.30 is: 861,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,514.90 : 1,284,772.35 = 574,505.30 : x
  2. Step 2: Convert to fraction form
    856,514.90/1,284,772.35 = 574,505.30/x
  3. Step 3: Cross multiply
    856,514.90x = 1,284,772.35 × 574,505.30
  4. Step 4: Simplify right side
    856,514.90x = 738,108,524,368.46
  5. Step 5: Solve for x
    x = 738,108,524,368.46/856,514.90
  6. Step 6: Final answer
    x = 861,757.95

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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.