Home / 788,610.20-1,182,915.30-539,778.20

Finding the Fourth Proportional to 788,610.20, 1,182,915.30 and 539,778.20

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Solution

The fourth proportional to 788,610.20, 1,182,915.30 and 539,778.20 is: 809,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,610.20 : 1,182,915.30 = 539,778.20 : x
  2. Step 2: Convert to fraction form
    788,610.20/1,182,915.30 = 539,778.20/x
  3. Step 3: Cross multiply
    788,610.20x = 1,182,915.30 × 539,778.20
  4. Step 4: Simplify right side
    788,610.20x = 638,511,891,386.46
  5. Step 5: Solve for x
    x = 638,511,891,386.46/788,610.20
  6. Step 6: Final answer
    x = 809,667.30

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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.