Home / 533,821.15-736,651.20-319,079.62

Finding the Fourth Proportional to 533,821.15, 736,651.20 and 319,079.62

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Solution

The fourth proportional to 533,821.15, 736,651.20 and 319,079.62 is: 440,316.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,821.15 : 736,651.20 = 319,079.62 : x
  2. Step 2: Convert to fraction form
    533,821.15/736,651.20 = 319,079.62/x
  3. Step 3: Cross multiply
    533,821.15x = 736,651.20 × 319,079.62
  4. Step 4: Simplify right side
    533,821.15x = 235,050,384,968.54
  5. Step 5: Solve for x
    x = 235,050,384,968.54/533,821.15
  6. Step 6: Final answer
    x = 440,316.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.