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Finding the Fourth Proportional to 587,752.73, 811,187.43 and 358,443.05

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Solution

The fourth proportional to 587,752.73, 811,187.43 and 358,443.05 is: 494,705.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,752.73 : 811,187.43 = 358,443.05 : x
  2. Step 2: Convert to fraction form
    587,752.73/811,187.43 = 358,443.05/x
  3. Step 3: Cross multiply
    587,752.73x = 811,187.43 × 358,443.05
  4. Step 4: Simplify right side
    587,752.73x = 290,764,492,474.92
  5. Step 5: Solve for x
    x = 290,764,492,474.92/587,752.73
  6. Step 6: Final answer
    x = 494,705.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.