Home / 714,438.18-985,937.43-392,178.27

Finding the Fourth Proportional to 714,438.18, 985,937.43 and 392,178.27

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Solution

The fourth proportional to 714,438.18, 985,937.43 and 392,178.27 is: 541,213.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,438.18 : 985,937.43 = 392,178.27 : x
  2. Step 2: Convert to fraction form
    714,438.18/985,937.43 = 392,178.27/x
  3. Step 3: Cross multiply
    714,438.18x = 985,937.43 × 392,178.27
  4. Step 4: Simplify right side
    714,438.18x = 386,663,235,625.65
  5. Step 5: Solve for x
    x = 386,663,235,625.65/714,438.18
  6. Step 6: Final answer
    x = 541,213.01

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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.