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Finding the Fourth Proportional to 559,772.44, 771,875.49 and 378,169.04

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Solution

The fourth proportional to 559,772.44, 771,875.49 and 378,169.04 is: 521,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,772.44 : 771,875.49 = 378,169.04 : x
  2. Step 2: Convert to fraction form
    559,772.44/771,875.49 = 378,169.04/x
  3. Step 3: Cross multiply
    559,772.44x = 771,875.49 × 378,169.04
  4. Step 4: Simplify right side
    559,772.44x = 291,899,413,052.83
  5. Step 5: Solve for x
    x = 291,899,413,052.83/559,772.44
  6. Step 6: Final answer
    x = 521,460.85

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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.