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Finding the Fourth Proportional to 454,087.76, 626,641.25 and 263,211.86

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Solution

The fourth proportional to 454,087.76, 626,641.25 and 263,211.86 is: 363,232.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,087.76 : 626,641.25 = 263,211.86 : x
  2. Step 2: Convert to fraction form
    454,087.76/626,641.25 = 263,211.86/x
  3. Step 3: Cross multiply
    454,087.76x = 626,641.25 × 263,211.86
  4. Step 4: Simplify right side
    454,087.76x = 164,939,408,965.23
  5. Step 5: Solve for x
    x = 164,939,408,965.23/454,087.76
  6. Step 6: Final answer
    x = 363,232.45

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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.