Home / 821,775.12-1,134,044.15-459,199.88

Finding the Fourth Proportional to 821,775.12, 1,134,044.15 and 459,199.88

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Solution

The fourth proportional to 821,775.12, 1,134,044.15 and 459,199.88 is: 633,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,775.12 : 1,134,044.15 = 459,199.88 : x
  2. Step 2: Convert to fraction form
    821,775.12/1,134,044.15 = 459,199.88/x
  3. Step 3: Cross multiply
    821,775.12x = 1,134,044.15 × 459,199.88
  4. Step 4: Simplify right side
    821,775.12x = 520,752,940,260.15
  5. Step 5: Solve for x
    x = 520,752,940,260.15/821,775.12
  6. Step 6: Final answer
    x = 633,692.75

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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.