Home / 822,591.40-1,135,154.78-455,082.11

Finding the Fourth Proportional to 822,591.40, 1,135,154.78 and 455,082.11

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Solution

The fourth proportional to 822,591.40, 1,135,154.78 and 455,082.11 is: 628,001.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,591.40 : 1,135,154.78 = 455,082.11 : x
  2. Step 2: Convert to fraction form
    822,591.40/1,135,154.78 = 455,082.11/x
  3. Step 3: Cross multiply
    822,591.40x = 1,135,154.78 × 455,082.11
  4. Step 4: Simplify right side
    822,591.40x = 516,588,630,183.58
  5. Step 5: Solve for x
    x = 516,588,630,183.58/822,591.40
  6. Step 6: Final answer
    x = 628,001.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.