Home / 689,987.25-1,034,980.88-191,351.25

Finding the Fourth Proportional to 689,987.25, 1,034,980.88 and 191,351.25

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Solution

The fourth proportional to 689,987.25, 1,034,980.88 and 191,351.25 is: 287,026.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,987.25 : 1,034,980.88 = 191,351.25 : x
  2. Step 2: Convert to fraction form
    689,987.25/1,034,980.88 = 191,351.25/x
  3. Step 3: Cross multiply
    689,987.25x = 1,034,980.88 × 191,351.25
  4. Step 4: Simplify right side
    689,987.25x = 198,044,884,157.34
  5. Step 5: Solve for x
    x = 198,044,884,157.34/689,987.25
  6. Step 6: Final answer
    x = 287,026.88

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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.