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Finding the Fourth Proportional to 976,682.50, 1,471,678.85 and 803,078.50

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Solution

The fourth proportional to 976,682.50, 1,471,678.85 and 803,078.50 is: 1,210,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,682.50 : 1,471,678.85 = 803,078.50 : x
  2. Step 2: Convert to fraction form
    976,682.50/1,471,678.85 = 803,078.50/x
  3. Step 3: Cross multiply
    976,682.50x = 1,471,678.85 × 803,078.50
  4. Step 4: Simplify right side
    976,682.50x = 1,181,873,643,339.73
  5. Step 5: Solve for x
    x = 1,181,873,643,339.73/976,682.50
  6. Step 6: Final answer
    x = 1,210,089.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.