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Finding the Fourth Proportional to 472,081.80, 708,417.96 and 191,599.05

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Solution

The fourth proportional to 472,081.80, 708,417.96 and 191,599.05 is: 287,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,081.80 : 708,417.96 = 191,599.05 : x
  2. Step 2: Convert to fraction form
    472,081.80/708,417.96 = 191,599.05/x
  3. Step 3: Cross multiply
    472,081.80x = 708,417.96 × 191,599.05
  4. Step 4: Simplify right side
    472,081.80x = 135,732,208,138.94
  5. Step 5: Solve for x
    x = 135,732,208,138.94/472,081.80
  6. Step 6: Final answer
    x = 287,518.41

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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.