Home / 409,278.04-560,713.57-393,937.52

Finding the Fourth Proportional to 409,278.04, 560,713.57 and 393,937.52

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Solution

The fourth proportional to 409,278.04, 560,713.57 and 393,937.52 is: 539,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,278.04 : 560,713.57 = 393,937.52 : x
  2. Step 2: Convert to fraction form
    409,278.04/560,713.57 = 393,937.52/x
  3. Step 3: Cross multiply
    409,278.04x = 560,713.57 × 393,937.52
  4. Step 4: Simplify right side
    409,278.04x = 220,886,109,407.74
  5. Step 5: Solve for x
    x = 220,886,109,407.74/409,278.04
  6. Step 6: Final answer
    x = 539,696.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.