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Finding the Fourth Proportional to 477,687.22, 715,441.55 and 228,545.46

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Solution

The fourth proportional to 477,687.22, 715,441.55 and 228,545.46 is: 342,297.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,687.22 : 715,441.55 = 228,545.46 : x
  2. Step 2: Convert to fraction form
    477,687.22/715,441.55 = 228,545.46/x
  3. Step 3: Cross multiply
    477,687.22x = 715,441.55 × 228,545.46
  4. Step 4: Simplify right side
    477,687.22x = 163,510,918,147.86
  5. Step 5: Solve for x
    x = 163,510,918,147.86/477,687.22
  6. Step 6: Final answer
    x = 342,297.03

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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.