Home / 1,185,132.90-1,635,471.10-641,256.68

Finding the Fourth Proportional to 1,185,132.90, 1,635,471.10 and 641,256.68

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Solution

The fourth proportional to 1,185,132.90, 1,635,471.10 and 641,256.68 is: 884,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,132.90 : 1,635,471.10 = 641,256.68 : x
  2. Step 2: Convert to fraction form
    1,185,132.90/1,635,471.10 = 641,256.68/x
  3. Step 3: Cross multiply
    1,185,132.90x = 1,635,471.10 × 641,256.68
  4. Step 4: Simplify right side
    1,185,132.90x = 1,048,756,767,821.95
  5. Step 5: Solve for x
    x = 1,048,756,767,821.95/1,185,132.90
  6. Step 6: Final answer
    x = 884,927.56

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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.