Home / 1,291,013.90-1,936,450.76-392,385.57

Finding the Fourth Proportional to 1,291,013.90, 1,936,450.76 and 392,385.57

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Solution

The fourth proportional to 1,291,013.90, 1,936,450.76 and 392,385.57 is: 588,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,013.90 : 1,936,450.76 = 392,385.57 : x
  2. Step 2: Convert to fraction form
    1,291,013.90/1,936,450.76 = 392,385.57/x
  3. Step 3: Cross multiply
    1,291,013.90x = 1,936,450.76 × 392,385.57
  4. Step 4: Simplify right side
    1,291,013.90x = 759,835,333,277.61
  5. Step 5: Solve for x
    x = 759,835,333,277.61/1,291,013.90
  6. Step 6: Final answer
    x = 588,557.05

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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.