Home / 714,195.90-985,542.12-391,926.65

Finding the Fourth Proportional to 714,195.90, 985,542.12 and 391,926.65

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Solution

The fourth proportional to 714,195.90, 985,542.12 and 391,926.65 is: 540,832.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,195.90 : 985,542.12 = 391,926.65 : x
  2. Step 2: Convert to fraction form
    714,195.90/985,542.12 = 391,926.65/x
  3. Step 3: Cross multiply
    714,195.90x = 985,542.12 × 391,926.65
  4. Step 4: Simplify right side
    714,195.90x = 386,260,216,597.79
  5. Step 5: Solve for x
    x = 386,260,216,597.79/714,195.90
  6. Step 6: Final answer
    x = 540,832.31

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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.