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Finding the Fourth Proportional to 617,302.95, 851,843.28 and 341,645.77

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Solution

The fourth proportional to 617,302.95, 851,843.28 and 341,645.77 is: 471,451.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,302.95 : 851,843.28 = 341,645.77 : x
  2. Step 2: Convert to fraction form
    617,302.95/851,843.28 = 341,645.77/x
  3. Step 3: Cross multiply
    617,302.95x = 851,843.28 × 341,645.77
  4. Step 4: Simplify right side
    617,302.95x = 291,028,653,314.93
  5. Step 5: Solve for x
    x = 291,028,653,314.93/617,302.95
  6. Step 6: Final answer
    x = 471,451.91

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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.