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Finding the Fourth Proportional to 526,223.76, 789,418.38 and 171,154.74

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Solution

The fourth proportional to 526,223.76, 789,418.38 and 171,154.74 is: 256,759.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,223.76 : 789,418.38 = 171,154.74 : x
  2. Step 2: Convert to fraction form
    526,223.76/789,418.38 = 171,154.74/x
  3. Step 3: Cross multiply
    526,223.76x = 789,418.38 × 171,154.74
  4. Step 4: Simplify right side
    526,223.76x = 135,112,697,580.12
  5. Step 5: Solve for x
    x = 135,112,697,580.12/526,223.76
  6. Step 6: Final answer
    x = 256,759.02

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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.