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Finding the Fourth Proportional to 645,580.01, 967,247.78 and 453,046.11

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Solution

The fourth proportional to 645,580.01, 967,247.78 and 453,046.11 is: 678,781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,580.01 : 967,247.78 = 453,046.11 : x
  2. Step 2: Convert to fraction form
    645,580.01/967,247.78 = 453,046.11/x
  3. Step 3: Cross multiply
    645,580.01x = 967,247.78 × 453,046.11
  4. Step 4: Simplify right side
    645,580.01x = 438,207,841,869.91
  5. Step 5: Solve for x
    x = 438,207,841,869.91/645,580.01
  6. Step 6: Final answer
    x = 678,781.62

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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.