Home / 1,039,728.42-1,560,191.67-440,642.34

Finding the Fourth Proportional to 1,039,728.42, 1,560,191.67 and 440,642.34

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Solution

The fourth proportional to 1,039,728.42, 1,560,191.67 and 440,642.34 is: 661,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,728.42 : 1,560,191.67 = 440,642.34 : x
  2. Step 2: Convert to fraction form
    1,039,728.42/1,560,191.67 = 440,642.34/x
  3. Step 3: Cross multiply
    1,039,728.42x = 1,560,191.67 × 440,642.34
  4. Step 4: Simplify right side
    1,039,728.42x = 687,486,508,317.31
  5. Step 5: Solve for x
    x = 687,486,508,317.31/1,039,728.42
  6. Step 6: Final answer
    x = 661,217.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.