Home / 719,237.76-1,073,387.70-639,523.68

Finding the Fourth Proportional to 719,237.76, 1,073,387.70 and 639,523.68

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Solution

The fourth proportional to 719,237.76, 1,073,387.70 and 639,523.68 is: 954,422.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,237.76 : 1,073,387.70 = 639,523.68 : x
  2. Step 2: Convert to fraction form
    719,237.76/1,073,387.70 = 639,523.68/x
  3. Step 3: Cross multiply
    719,237.76x = 1,073,387.70 × 639,523.68
  4. Step 4: Simplify right side
    719,237.76x = 686,456,851,970.74
  5. Step 5: Solve for x
    x = 686,456,851,970.74/719,237.76
  6. Step 6: Final answer
    x = 954,422.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.