Home / 818,734.20-1,228,101.30-458,535.30

Finding the Fourth Proportional to 818,734.20, 1,228,101.30 and 458,535.30

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Solution

The fourth proportional to 818,734.20, 1,228,101.30 and 458,535.30 is: 687,802.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,734.20 : 1,228,101.30 = 458,535.30 : x
  2. Step 2: Convert to fraction form
    818,734.20/1,228,101.30 = 458,535.30/x
  3. Step 3: Cross multiply
    818,734.20x = 1,228,101.30 × 458,535.30
  4. Step 4: Simplify right side
    818,734.20x = 563,127,798,025.89
  5. Step 5: Solve for x
    x = 563,127,798,025.89/818,734.20
  6. Step 6: Final answer
    x = 687,802.95

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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.