Home / 815,436.30-1,223,154.45-532,001.10

Finding the Fourth Proportional to 815,436.30, 1,223,154.45 and 532,001.10

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Solution

The fourth proportional to 815,436.30, 1,223,154.45 and 532,001.10 is: 798,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,436.30 : 1,223,154.45 = 532,001.10 : x
  2. Step 2: Convert to fraction form
    815,436.30/1,223,154.45 = 532,001.10/x
  3. Step 3: Cross multiply
    815,436.30x = 1,223,154.45 × 532,001.10
  4. Step 4: Simplify right side
    815,436.30x = 650,719,512,869.90
  5. Step 5: Solve for x
    x = 650,719,512,869.90/815,436.30
  6. Step 6: Final answer
    x = 798,001.65

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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.