Home / 1,185,793.90-1,636,395.22-641,929.28

Finding the Fourth Proportional to 1,185,793.90, 1,636,395.22 and 641,929.28

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Solution

The fourth proportional to 1,185,793.90, 1,636,395.22 and 641,929.28 is: 885,862.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,793.90 : 1,636,395.22 = 641,929.28 : x
  2. Step 2: Convert to fraction form
    1,185,793.90/1,636,395.22 = 641,929.28/x
  3. Step 3: Cross multiply
    1,185,793.90x = 1,636,395.22 × 641,929.28
  4. Step 4: Simplify right side
    1,185,793.90x = 1,050,450,005,370.04
  5. Step 5: Solve for x
    x = 1,050,450,005,370.04/1,185,793.90
  6. Step 6: Final answer
    x = 885,862.21

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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.