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Finding the Fourth Proportional to 528,098.30, 792,147.45 and 212,392.70

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Solution

The fourth proportional to 528,098.30, 792,147.45 and 212,392.70 is: 318,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,098.30 : 792,147.45 = 212,392.70 : x
  2. Step 2: Convert to fraction form
    528,098.30/792,147.45 = 212,392.70/x
  3. Step 3: Cross multiply
    528,098.30x = 792,147.45 × 212,392.70
  4. Step 4: Simplify right side
    528,098.30x = 168,246,335,703.62
  5. Step 5: Solve for x
    x = 168,246,335,703.62/528,098.30
  6. Step 6: Final answer
    x = 318,589.05

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Similar ratio
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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.