Home / 664,867.60-997,204.20-191,503.60

Finding the Fourth Proportional to 664,867.60, 997,204.20 and 191,503.60

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Solution

The fourth proportional to 664,867.60, 997,204.20 and 191,503.60 is: 287,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,867.60 : 997,204.20 = 191,503.60 : x
  2. Step 2: Convert to fraction form
    664,867.60/997,204.20 = 191,503.60/x
  3. Step 3: Cross multiply
    664,867.60x = 997,204.20 × 191,503.60
  4. Step 4: Simplify right side
    664,867.60x = 190,968,194,235.12
  5. Step 5: Solve for x
    x = 190,968,194,235.12/664,867.60
  6. Step 6: Final answer
    x = 287,227.40

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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.