Home / 687,195.29-1,025,213.14-649,994.42

Finding the Fourth Proportional to 687,195.29, 1,025,213.14 and 649,994.42

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Solution

The fourth proportional to 687,195.29, 1,025,213.14 and 649,994.42 is: 969,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,195.29 : 1,025,213.14 = 649,994.42 : x
  2. Step 2: Convert to fraction form
    687,195.29/1,025,213.14 = 649,994.42/x
  3. Step 3: Cross multiply
    687,195.29x = 1,025,213.14 × 649,994.42
  4. Step 4: Simplify right side
    687,195.29x = 666,382,820,310.68
  5. Step 5: Solve for x
    x = 666,382,820,310.68/687,195.29
  6. Step 6: Final answer
    x = 969,713.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.