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Finding the Fourth Proportional to 1,788,491.56, 2,683,624.66 and 708,981.29

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Solution

The fourth proportional to 1,788,491.56, 2,683,624.66 and 708,981.29 is: 1,063,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,491.56 : 2,683,624.66 = 708,981.29 : x
  2. Step 2: Convert to fraction form
    1,788,491.56/2,683,624.66 = 708,981.29/x
  3. Step 3: Cross multiply
    1,788,491.56x = 2,683,624.66 × 708,981.29
  4. Step 4: Simplify right side
    1,788,491.56x = 1,902,639,673,322.61
  5. Step 5: Solve for x
    x = 1,902,639,673,322.61/1,788,491.56
  6. Step 6: Final answer
    x = 1,063,823.68

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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.