Home / 716,081.92-987,913.36-409,994.71

Finding the Fourth Proportional to 716,081.92, 987,913.36 and 409,994.71

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Solution

The fourth proportional to 716,081.92, 987,913.36 and 409,994.71 is: 565,632.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,081.92 : 987,913.36 = 409,994.71 : x
  2. Step 2: Convert to fraction form
    716,081.92/987,913.36 = 409,994.71/x
  3. Step 3: Cross multiply
    716,081.92x = 987,913.36 × 409,994.71
  4. Step 4: Simplify right side
    716,081.92x = 405,039,255,138.05
  5. Step 5: Solve for x
    x = 405,039,255,138.05/716,081.92
  6. Step 6: Final answer
    x = 565,632.57

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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.