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Finding the Fourth Proportional to 526,646.16, 789,888.12 and 171,659.28

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Solution

The fourth proportional to 526,646.16, 789,888.12 and 171,659.28 is: 257,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,646.16 : 789,888.12 = 171,659.28 : x
  2. Step 2: Convert to fraction form
    526,646.16/789,888.12 = 171,659.28/x
  3. Step 3: Cross multiply
    526,646.16x = 789,888.12 × 171,659.28
  4. Step 4: Simplify right side
    526,646.16x = 135,591,625,959.75
  5. Step 5: Solve for x
    x = 135,591,625,959.75/526,646.16
  6. Step 6: Final answer
    x = 257,462.48

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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.