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Finding the Fourth Proportional to 496,812.10, 745,218.15 and 197,364.10

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Solution

The fourth proportional to 496,812.10, 745,218.15 and 197,364.10 is: 296,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,812.10 : 745,218.15 = 197,364.10 : x
  2. Step 2: Convert to fraction form
    496,812.10/745,218.15 = 197,364.10/x
  3. Step 3: Cross multiply
    496,812.10x = 745,218.15 × 197,364.10
  4. Step 4: Simplify right side
    496,812.10x = 147,079,309,478.42
  5. Step 5: Solve for x
    x = 147,079,309,478.42/496,812.10
  6. Step 6: Final answer
    x = 296,046.15

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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.