Home / 856,517.40-1,284,776.10-574,507.80

Finding the Fourth Proportional to 856,517.40, 1,284,776.10 and 574,507.80

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Solution

The fourth proportional to 856,517.40, 1,284,776.10 and 574,507.80 is: 861,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,517.40 : 1,284,776.10 = 574,507.80 : x
  2. Step 2: Convert to fraction form
    856,517.40/1,284,776.10 = 574,507.80/x
  3. Step 3: Cross multiply
    856,517.40x = 1,284,776.10 × 574,507.80
  4. Step 4: Simplify right side
    856,517.40x = 738,113,890,703.58
  5. Step 5: Solve for x
    x = 738,113,890,703.58/856,517.40
  6. Step 6: Final answer
    x = 861,761.70

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Double scale
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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.