Home / 716,971.32-988,867.78-445,200.12

Finding the Fourth Proportional to 716,971.32, 988,867.78 and 445,200.12

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Solution

The fourth proportional to 716,971.32, 988,867.78 and 445,200.12 is: 614,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,971.32 : 988,867.78 = 445,200.12 : x
  2. Step 2: Convert to fraction form
    716,971.32/988,867.78 = 445,200.12/x
  3. Step 3: Cross multiply
    716,971.32x = 988,867.78 × 445,200.12
  4. Step 4: Simplify right side
    716,971.32x = 440,244,054,320.13
  5. Step 5: Solve for x
    x = 440,244,054,320.13/716,971.32
  6. Step 6: Final answer
    x = 614,033.01

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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.