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Finding the Fourth Proportional to 664,862.60, 997,196.70 and 191,498.60

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Solution

The fourth proportional to 664,862.60, 997,196.70 and 191,498.60 is: 287,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,862.60 : 997,196.70 = 191,498.60 : x
  2. Step 2: Convert to fraction form
    664,862.60/997,196.70 = 191,498.60/x
  3. Step 3: Cross multiply
    664,862.60x = 997,196.70 × 191,498.60
  4. Step 4: Simplify right side
    664,862.60x = 190,961,771,974.62
  5. Step 5: Solve for x
    x = 190,961,771,974.62/664,862.60
  6. Step 6: Final answer
    x = 287,219.90

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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.