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Finding the Fourth Proportional to 496,658.60, 744,987.90 and 197,210.60

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Solution

The fourth proportional to 496,658.60, 744,987.90 and 197,210.60 is: 295,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,658.60 : 744,987.90 = 197,210.60 : x
  2. Step 2: Convert to fraction form
    496,658.60/744,987.90 = 197,210.60/x
  3. Step 3: Cross multiply
    496,658.60x = 744,987.90 × 197,210.60
  4. Step 4: Simplify right side
    496,658.60x = 146,919,510,751.74
  5. Step 5: Solve for x
    x = 146,919,510,751.74/496,658.60
  6. Step 6: Final answer
    x = 295,815.90

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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.