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Finding the Fourth Proportional to 636,545.83, 878,415.73 and 350,065.91

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Solution

The fourth proportional to 636,545.83, 878,415.73 and 350,065.91 is: 483,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,545.83 : 878,415.73 = 350,065.91 : x
  2. Step 2: Convert to fraction form
    636,545.83/878,415.73 = 350,065.91/x
  3. Step 3: Cross multiply
    636,545.83x = 878,415.73 × 350,065.91
  4. Step 4: Simplify right side
    636,545.83x = 307,503,403,944.64
  5. Step 5: Solve for x
    x = 307,503,403,944.64/636,545.83
  6. Step 6: Final answer
    x = 483,081.33

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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.