Home / 677,212.71-934,517.78-386,766.81

Finding the Fourth Proportional to 677,212.71, 934,517.78 and 386,766.81

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Solution

The fourth proportional to 677,212.71, 934,517.78 and 386,766.81 is: 533,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,212.71 : 934,517.78 = 386,766.81 : x
  2. Step 2: Convert to fraction form
    677,212.71/934,517.78 = 386,766.81/x
  3. Step 3: Cross multiply
    677,212.71x = 934,517.78 × 386,766.81
  4. Step 4: Simplify right side
    677,212.71x = 361,440,462,577.37
  5. Step 5: Solve for x
    x = 361,440,462,577.37/677,212.71
  6. Step 6: Final answer
    x = 533,717.78

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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.