Home / 714,247.27-985,673.21-391,987.35

Finding the Fourth Proportional to 714,247.27, 985,673.21 and 391,987.35

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Solution

The fourth proportional to 714,247.27, 985,673.21 and 391,987.35 is: 540,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,247.27 : 985,673.21 = 391,987.35 : x
  2. Step 2: Convert to fraction form
    714,247.27/985,673.21 = 391,987.35/x
  3. Step 3: Cross multiply
    714,247.27x = 985,673.21 × 391,987.35
  4. Step 4: Simplify right side
    714,247.27x = 386,371,427,593.96
  5. Step 5: Solve for x
    x = 386,371,427,593.96/714,247.27
  6. Step 6: Final answer
    x = 540,949.12

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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.