Home / 714,253.26-985,681.48-391,993.36

Finding the Fourth Proportional to 714,253.26, 985,681.48 and 391,993.36

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Solution

The fourth proportional to 714,253.26, 985,681.48 and 391,993.36 is: 540,957.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,253.26 : 985,681.48 = 391,993.36 : x
  2. Step 2: Convert to fraction form
    714,253.26/985,681.48 = 391,993.36/x
  3. Step 3: Cross multiply
    714,253.26x = 985,681.48 × 391,993.36
  4. Step 4: Simplify right side
    714,253.26x = 386,380,595,234.97
  5. Step 5: Solve for x
    x = 386,380,595,234.97/714,253.26
  6. Step 6: Final answer
    x = 540,957.41

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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.