Home / 1,191,584.61-1,644,405.89-647,721.45

Finding the Fourth Proportional to 1,191,584.61, 1,644,405.89 and 647,721.45

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Solution

The fourth proportional to 1,191,584.61, 1,644,405.89 and 647,721.45 is: 893,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,584.61 : 1,644,405.89 = 647,721.45 : x
  2. Step 2: Convert to fraction form
    1,191,584.61/1,644,405.89 = 647,721.45/x
  3. Step 3: Cross multiply
    1,191,584.61x = 1,644,405.89 × 647,721.45
  4. Step 4: Simplify right side
    1,191,584.61x = 1,065,116,964,220.73
  5. Step 5: Solve for x
    x = 1,065,116,964,220.73/1,191,584.61
  6. Step 6: Final answer
    x = 893,866.00

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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.