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Finding the Fourth Proportional to 526,615.83, 789,772.95 and 171,660.87

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Solution

The fourth proportional to 526,615.83, 789,772.95 and 171,660.87 is: 257,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,615.83 : 789,772.95 = 171,660.87 : x
  2. Step 2: Convert to fraction form
    526,615.83/789,772.95 = 171,660.87/x
  3. Step 3: Cross multiply
    526,615.83x = 789,772.95 × 171,660.87
  4. Step 4: Simplify right side
    526,615.83x = 135,573,111,699.47
  5. Step 5: Solve for x
    x = 135,573,111,699.47/526,615.83
  6. Step 6: Final answer
    x = 257,442.15

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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.