Home / 819,788.17-1,229,325.11-435,452.91

Finding the Fourth Proportional to 819,788.17, 1,229,325.11 and 435,452.91

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Solution

The fourth proportional to 819,788.17, 1,229,325.11 and 435,452.91 is: 652,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,788.17 : 1,229,325.11 = 435,452.91 : x
  2. Step 2: Convert to fraction form
    819,788.17/1,229,325.11 = 435,452.91/x
  3. Step 3: Cross multiply
    819,788.17x = 1,229,325.11 × 435,452.91
  4. Step 4: Simplify right side
    819,788.17x = 535,313,196,485.57
  5. Step 5: Solve for x
    x = 535,313,196,485.57/819,788.17
  6. Step 6: Final answer
    x = 652,989.66

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Double scale
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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.