Home / 822,384.46-1,134,546.77-640,781.11

Finding the Fourth Proportional to 822,384.46, 1,134,546.77 and 640,781.11

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Solution

The fourth proportional to 822,384.46, 1,134,546.77 and 640,781.11 is: 884,010.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,384.46 : 1,134,546.77 = 640,781.11 : x
  2. Step 2: Convert to fraction form
    822,384.46/1,134,546.77 = 640,781.11/x
  3. Step 3: Cross multiply
    822,384.46x = 1,134,546.77 × 640,781.11
  4. Step 4: Simplify right side
    822,384.46x = 726,996,129,750.88
  5. Step 5: Solve for x
    x = 726,996,129,750.88/822,384.46
  6. Step 6: Final answer
    x = 884,010.06

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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.