Home / 819,696.91-1,131,130.52-452,178.29

Finding the Fourth Proportional to 819,696.91, 1,131,130.52 and 452,178.29

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Solution

The fourth proportional to 819,696.91, 1,131,130.52 and 452,178.29 is: 623,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,696.91 : 1,131,130.52 = 452,178.29 : x
  2. Step 2: Convert to fraction form
    819,696.91/1,131,130.52 = 452,178.29/x
  3. Step 3: Cross multiply
    819,696.91x = 1,131,130.52 × 452,178.29
  4. Step 4: Simplify right side
    819,696.91x = 511,472,665,430.86
  5. Step 5: Solve for x
    x = 511,472,665,430.86/819,696.91
  6. Step 6: Final answer
    x = 623,977.79

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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.