Home / 931,538.80-1,397,308.20-340,793.20

Finding the Fourth Proportional to 931,538.80, 1,397,308.20 and 340,793.20

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Solution

The fourth proportional to 931,538.80, 1,397,308.20 and 340,793.20 is: 511,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,538.80 : 1,397,308.20 = 340,793.20 : x
  2. Step 2: Convert to fraction form
    931,538.80/1,397,308.20 = 340,793.20/x
  3. Step 3: Cross multiply
    931,538.80x = 1,397,308.20 × 340,793.20
  4. Step 4: Simplify right side
    931,538.80x = 476,193,132,864.24
  5. Step 5: Solve for x
    x = 476,193,132,864.24/931,538.80
  6. Step 6: Final answer
    x = 511,189.80

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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.