Home / 1,191,656.34-1,644,517.80-647,828.64

Finding the Fourth Proportional to 1,191,656.34, 1,644,517.80 and 647,828.64

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Solution

The fourth proportional to 1,191,656.34, 1,644,517.80 and 647,828.64 is: 894,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,656.34 : 1,644,517.80 = 647,828.64 : x
  2. Step 2: Convert to fraction form
    1,191,656.34/1,644,517.80 = 647,828.64/x
  3. Step 3: Cross multiply
    1,191,656.34x = 1,644,517.80 × 647,828.64
  4. Step 4: Simplify right side
    1,191,656.34x = 1,065,365,729,829.79
  5. Step 5: Solve for x
    x = 1,065,365,729,829.79/1,191,656.34
  6. Step 6: Final answer
    x = 894,020.95

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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.