Home / 714,964.28-986,612.24-409,007.84

Finding the Fourth Proportional to 714,964.28, 986,612.24 and 409,007.84

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Solution

The fourth proportional to 714,964.28, 986,612.24 and 409,007.84 is: 564,408.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,964.28 : 986,612.24 = 409,007.84 : x
  2. Step 2: Convert to fraction form
    714,964.28/986,612.24 = 409,007.84/x
  3. Step 3: Cross multiply
    714,964.28x = 986,612.24 × 409,007.84
  4. Step 4: Simplify right side
    714,964.28x = 403,532,141,199.96
  5. Step 5: Solve for x
    x = 403,532,141,199.96/714,964.28
  6. Step 6: Final answer
    x = 564,408.81

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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.