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Finding the Fourth Proportional to 526,878.60, 790,351.86 and 185,280.12

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Solution

The fourth proportional to 526,878.60, 790,351.86 and 185,280.12 is: 277,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,878.60 : 790,351.86 = 185,280.12 : x
  2. Step 2: Convert to fraction form
    526,878.60/790,351.86 = 185,280.12/x
  3. Step 3: Cross multiply
    526,878.60x = 790,351.86 × 185,280.12
  4. Step 4: Simplify right side
    526,878.60x = 146,436,487,463.02
  5. Step 5: Solve for x
    x = 146,436,487,463.02/526,878.60
  6. Step 6: Final answer
    x = 277,932.12

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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.