Home / 1,288,504.53-1,931,903.73-614,689.83

Finding the Fourth Proportional to 1,288,504.53, 1,931,903.73 and 614,689.83

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Solution

The fourth proportional to 1,288,504.53, 1,931,903.73 and 614,689.83 is: 921,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,504.53 : 1,931,903.73 = 614,689.83 : x
  2. Step 2: Convert to fraction form
    1,288,504.53/1,931,903.73 = 614,689.83/x
  3. Step 3: Cross multiply
    1,288,504.53x = 1,931,903.73 × 614,689.83
  4. Step 4: Simplify right side
    1,288,504.53x = 1,187,521,575,370.07
  5. Step 5: Solve for x
    x = 1,187,521,575,370.07/1,288,504.53
  6. Step 6: Final answer
    x = 921,627.78

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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.