Home / 1,393,351.20-1,923,038.64-781,751.52

Finding the Fourth Proportional to 1,393,351.20, 1,923,038.64 and 781,751.52

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Solution

The fourth proportional to 1,393,351.20, 1,923,038.64 and 781,751.52 is: 1,078,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,351.20 : 1,923,038.64 = 781,751.52 : x
  2. Step 2: Convert to fraction form
    1,393,351.20/1,923,038.64 = 781,751.52/x
  3. Step 3: Cross multiply
    1,393,351.20x = 1,923,038.64 × 781,751.52
  4. Step 4: Simplify right side
    1,393,351.20x = 1,503,338,379,838.73
  5. Step 5: Solve for x
    x = 1,503,338,379,838.73/1,393,351.20
  6. Step 6: Final answer
    x = 1,078,937.16

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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.