Home / 819,695.88-1,131,178.12-457,120.16

Finding the Fourth Proportional to 819,695.88, 1,131,178.12 and 457,120.16

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Solution

The fourth proportional to 819,695.88, 1,131,178.12 and 457,120.16 is: 630,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,695.88 : 1,131,178.12 = 457,120.16 : x
  2. Step 2: Convert to fraction form
    819,695.88/1,131,178.12 = 457,120.16/x
  3. Step 3: Cross multiply
    819,695.88x = 1,131,178.12 × 457,120.16
  4. Step 4: Simplify right side
    819,695.88x = 517,084,323,202.90
  5. Step 5: Solve for x
    x = 517,084,323,202.90/819,695.88
  6. Step 6: Final answer
    x = 630,824.60

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Double scale
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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.