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Finding the Fourth Proportional to 526,463.89, 789,695.86 and 171,477.90

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Solution

The fourth proportional to 526,463.89, 789,695.86 and 171,477.90 is: 257,216.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,463.89 : 789,695.86 = 171,477.90 : x
  2. Step 2: Convert to fraction form
    526,463.89/789,695.86 = 171,477.90/x
  3. Step 3: Cross multiply
    526,463.89x = 789,695.86 × 171,477.90
  4. Step 4: Simplify right side
    526,463.89x = 135,415,387,711.49
  5. Step 5: Solve for x
    x = 135,415,387,711.49/526,463.89
  6. Step 6: Final answer
    x = 257,216.86

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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.