Home / 826,615.60-1,239,923.40-353,348.80

Finding the Fourth Proportional to 826,615.60, 1,239,923.40 and 353,348.80

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Solution

The fourth proportional to 826,615.60, 1,239,923.40 and 353,348.80 is: 530,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,615.60 : 1,239,923.40 = 353,348.80 : x
  2. Step 2: Convert to fraction form
    826,615.60/1,239,923.40 = 353,348.80/x
  3. Step 3: Cross multiply
    826,615.60x = 1,239,923.40 × 353,348.80
  4. Step 4: Simplify right side
    826,615.60x = 438,125,445,481.92
  5. Step 5: Solve for x
    x = 438,125,445,481.92/826,615.60
  6. Step 6: Final answer
    x = 530,023.20

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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.