Home / 1,287,193.25-1,930,727.11-477,735.23

Finding the Fourth Proportional to 1,287,193.25, 1,930,727.11 and 477,735.23

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Solution

The fourth proportional to 1,287,193.25, 1,930,727.11 and 477,735.23 is: 716,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,193.25 : 1,930,727.11 = 477,735.23 : x
  2. Step 2: Convert to fraction form
    1,287,193.25/1,930,727.11 = 477,735.23/x
  3. Step 3: Cross multiply
    1,287,193.25x = 1,930,727.11 × 477,735.23
  4. Step 4: Simplify right side
    1,287,193.25x = 922,376,357,689.69
  5. Step 5: Solve for x
    x = 922,376,357,689.69/1,287,193.25
  6. Step 6: Final answer
    x = 716,579.55

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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.