Home / 543,630.24-815,381.98-144,302.04

Finding the Fourth Proportional to 543,630.24, 815,381.98 and 144,302.04

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Solution

The fourth proportional to 543,630.24, 815,381.98 and 144,302.04 is: 216,436.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,630.24 : 815,381.98 = 144,302.04 : x
  2. Step 2: Convert to fraction form
    543,630.24/815,381.98 = 144,302.04/x
  3. Step 3: Cross multiply
    543,630.24x = 815,381.98 × 144,302.04
  4. Step 4: Simplify right side
    543,630.24x = 117,661,282,732.48
  5. Step 5: Solve for x
    x = 117,661,282,732.48/543,630.24
  6. Step 6: Final answer
    x = 216,436.24

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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.