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Finding the Fourth Proportional to 441,709.61, 662,008.55 and 239,297.90

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Solution

The fourth proportional to 441,709.61, 662,008.55 and 239,297.90 is: 358,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,709.61 : 662,008.55 = 239,297.90 : x
  2. Step 2: Convert to fraction form
    441,709.61/662,008.55 = 239,297.90/x
  3. Step 3: Cross multiply
    441,709.61x = 662,008.55 × 239,297.90
  4. Step 4: Simplify right side
    441,709.61x = 158,417,251,290.51
  5. Step 5: Solve for x
    x = 158,417,251,290.51/441,709.61
  6. Step 6: Final answer
    x = 358,645.70

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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.