Home / 543,545.76-815,418.86-178,827.89

Finding the Fourth Proportional to 543,545.76, 815,418.86 and 178,827.89

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Solution

The fourth proportional to 543,545.76, 815,418.86 and 178,827.89 is: 268,274.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,545.76 : 815,418.86 = 178,827.89 : x
  2. Step 2: Convert to fraction form
    543,545.76/815,418.86 = 178,827.89/x
  3. Step 3: Cross multiply
    543,545.76x = 815,418.86 × 178,827.89
  4. Step 4: Simplify right side
    543,545.76x = 145,819,629,228.77
  5. Step 5: Solve for x
    x = 145,819,629,228.77/543,545.76
  6. Step 6: Final answer
    x = 268,274.80

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1.5x scale

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.