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Finding the Fourth Proportional to 822,732.60, 1,234,098.90 and 811,673.40

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Solution

The fourth proportional to 822,732.60, 1,234,098.90 and 811,673.40 is: 1,217,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,732.60 : 1,234,098.90 = 811,673.40 : x
  2. Step 2: Convert to fraction form
    822,732.60/1,234,098.90 = 811,673.40/x
  3. Step 3: Cross multiply
    822,732.60x = 1,234,098.90 × 811,673.40
  4. Step 4: Simplify right side
    822,732.60x = 1,001,685,250,099.26
  5. Step 5: Solve for x
    x = 1,001,685,250,099.26/822,732.60
  6. Step 6: Final answer
    x = 1,217,510.10

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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.