Home / 984,780.30-1,477,170.45-319,932.30

Finding the Fourth Proportional to 984,780.30, 1,477,170.45 and 319,932.30

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Solution

The fourth proportional to 984,780.30, 1,477,170.45 and 319,932.30 is: 479,898.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,780.30 : 1,477,170.45 = 319,932.30 : x
  2. Step 2: Convert to fraction form
    984,780.30/1,477,170.45 = 319,932.30/x
  3. Step 3: Cross multiply
    984,780.30x = 1,477,170.45 × 319,932.30
  4. Step 4: Simplify right side
    984,780.30x = 472,594,539,560.54
  5. Step 5: Solve for x
    x = 472,594,539,560.54/984,780.30
  6. Step 6: Final answer
    x = 479,898.45

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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.