Home / 1,205,423.46-1,663,479.53-661,568.19

Finding the Fourth Proportional to 1,205,423.46, 1,663,479.53 and 661,568.19

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Solution

The fourth proportional to 1,205,423.46, 1,663,479.53 and 661,568.19 is: 912,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,423.46 : 1,663,479.53 = 661,568.19 : x
  2. Step 2: Convert to fraction form
    1,205,423.46/1,663,479.53 = 661,568.19/x
  3. Step 3: Cross multiply
    1,205,423.46x = 1,663,479.53 × 661,568.19
  4. Step 4: Simplify right side
    1,205,423.46x = 1,100,505,138,456.31
  5. Step 5: Solve for x
    x = 1,100,505,138,456.31/1,205,423.46
  6. Step 6: Final answer
    x = 912,961.44

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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.