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Finding the Fourth Proportional to 526,494.36, 789,740.94 and 171,507.81

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Solution

The fourth proportional to 526,494.36, 789,740.94 and 171,507.81 is: 257,261.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,494.36 : 789,740.94 = 171,507.81 : x
  2. Step 2: Convert to fraction form
    526,494.36/789,740.94 = 171,507.81/x
  3. Step 3: Cross multiply
    526,494.36x = 789,740.94 × 171,507.81
  4. Step 4: Simplify right side
    526,494.36x = 135,446,739,086.74
  5. Step 5: Solve for x
    x = 135,446,739,086.74/526,494.36
  6. Step 6: Final answer
    x = 257,261.52

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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.