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Finding the Fourth Proportional to 526,503.28, 789,755 and 152,526.48

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Solution

The fourth proportional to 526,503.28, 789,755 and 152,526.48 is: 228,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,503.28 : 789,755 = 152,526.48 : x
  2. Step 2: Convert to fraction form
    526,503.28/789,755 = 152,526.48/x
  3. Step 3: Cross multiply
    526,503.28x = 789,755 × 152,526.48
  4. Step 4: Simplify right side
    526,503.28x = 120,458,550,212.40
  5. Step 5: Solve for x
    x = 120,458,550,212.40/526,503.28
  6. Step 6: Final answer
    x = 228,789.74

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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.