Home / 876,220.20-1,314,330.30-539,640.90

Finding the Fourth Proportional to 876,220.20, 1,314,330.30 and 539,640.90

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Solution

The fourth proportional to 876,220.20, 1,314,330.30 and 539,640.90 is: 809,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,220.20 : 1,314,330.30 = 539,640.90 : x
  2. Step 2: Convert to fraction form
    876,220.20/1,314,330.30 = 539,640.90/x
  3. Step 3: Cross multiply
    876,220.20x = 1,314,330.30 × 539,640.90
  4. Step 4: Simplify right side
    876,220.20x = 709,266,385,989.27
  5. Step 5: Solve for x
    x = 709,266,385,989.27/876,220.20
  6. Step 6: Final answer
    x = 809,461.35

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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.