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Finding the Fourth Proportional to 567,196.40, 851,122.65 and 212,246.30

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Solution

The fourth proportional to 567,196.40, 851,122.65 and 212,246.30 is: 318,492.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,196.40 : 851,122.65 = 212,246.30 : x
  2. Step 2: Convert to fraction form
    567,196.40/851,122.65 = 212,246.30/x
  3. Step 3: Cross multiply
    567,196.40x = 851,122.65 × 212,246.30
  4. Step 4: Simplify right side
    567,196.40x = 180,647,633,308.70
  5. Step 5: Solve for x
    x = 180,647,633,308.70/567,196.40
  6. Step 6: Final answer
    x = 318,492.21

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Double scale
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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.