Home / 905,444.18-1,247,931.33-663,212.06

Finding the Fourth Proportional to 905,444.18, 1,247,931.33 and 663,212.06

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Solution

The fourth proportional to 905,444.18, 1,247,931.33 and 663,212.06 is: 914,074.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,444.18 : 1,247,931.33 = 663,212.06 : x
  2. Step 2: Convert to fraction form
    905,444.18/1,247,931.33 = 663,212.06/x
  3. Step 3: Cross multiply
    905,444.18x = 1,247,931.33 × 663,212.06
  4. Step 4: Simplify right side
    905,444.18x = 827,643,108,107.84
  5. Step 5: Solve for x
    x = 827,643,108,107.84/905,444.18
  6. Step 6: Final answer
    x = 914,074.14

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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.