Home / 782,955.20-1,174,432.80-191,979.20

Finding the Fourth Proportional to 782,955.20, 1,174,432.80 and 191,979.20

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Solution

The fourth proportional to 782,955.20, 1,174,432.80 and 191,979.20 is: 287,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,955.20 : 1,174,432.80 = 191,979.20 : x
  2. Step 2: Convert to fraction form
    782,955.20/1,174,432.80 = 191,979.20/x
  3. Step 3: Cross multiply
    782,955.20x = 1,174,432.80 × 191,979.20
  4. Step 4: Simplify right side
    782,955.20x = 225,466,663,525.60
  5. Step 5: Solve for x
    x = 225,466,663,525.60/782,955.20
  6. Step 6: Final answer
    x = 287,968.79

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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.