Home / 543,538.13-815,451.80-188,551.58

Finding the Fourth Proportional to 543,538.13, 815,451.80 and 188,551.58

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Solution

The fourth proportional to 543,538.13, 815,451.80 and 188,551.58 is: 282,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,538.13 : 815,451.80 = 188,551.58 : x
  2. Step 2: Convert to fraction form
    543,538.13/815,451.80 = 188,551.58/x
  3. Step 3: Cross multiply
    543,538.13x = 815,451.80 × 188,551.58
  4. Step 4: Simplify right side
    543,538.13x = 153,754,720,283.83
  5. Step 5: Solve for x
    x = 153,754,720,283.83/543,538.13
  6. Step 6: Final answer
    x = 282,877.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.