Home / 712,729.39-983,558.73-386,034.27

Finding the Fourth Proportional to 712,729.39, 983,558.73 and 386,034.27

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Solution

The fourth proportional to 712,729.39, 983,558.73 and 386,034.27 is: 532,723.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,729.39 : 983,558.73 = 386,034.27 : x
  2. Step 2: Convert to fraction form
    712,729.39/983,558.73 = 386,034.27/x
  3. Step 3: Cross multiply
    712,729.39x = 983,558.73 × 386,034.27
  4. Step 4: Simplify right side
    712,729.39x = 379,687,377,831.49
  5. Step 5: Solve for x
    x = 379,687,377,831.49/712,729.39
  6. Step 6: Final answer
    x = 532,723.05

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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.