Home / 714,677.14-986,256.44-392,408.11

Finding the Fourth Proportional to 714,677.14, 986,256.44 and 392,408.11

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Solution

The fourth proportional to 714,677.14, 986,256.44 and 392,408.11 is: 541,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,677.14 : 986,256.44 = 392,408.11 : x
  2. Step 2: Convert to fraction form
    714,677.14/986,256.44 = 392,408.11/x
  3. Step 3: Cross multiply
    714,677.14x = 986,256.44 × 392,408.11
  4. Step 4: Simplify right side
    714,677.14x = 387,015,025,595.73
  5. Step 5: Solve for x
    x = 387,015,025,595.73/714,677.14
  6. Step 6: Final answer
    x = 541,524.28

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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.