Home / 815,542.20-1,223,313.30-605,590.20

Finding the Fourth Proportional to 815,542.20, 1,223,313.30 and 605,590.20

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Solution

The fourth proportional to 815,542.20, 1,223,313.30 and 605,590.20 is: 908,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,542.20 : 1,223,313.30 = 605,590.20 : x
  2. Step 2: Convert to fraction form
    815,542.20/1,223,313.30 = 605,590.20/x
  3. Step 3: Cross multiply
    815,542.20x = 1,223,313.30 × 605,590.20
  4. Step 4: Simplify right side
    815,542.20x = 740,826,546,009.66
  5. Step 5: Solve for x
    x = 740,826,546,009.66/815,542.20
  6. Step 6: Final answer
    x = 908,385.30

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Double scale
Find fourth proportional to 815,543.20, 1,223,314.80 and 605,591.20
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.