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Finding the Fourth Proportional to 671,637.30, 926,855.50 and 365,712.95

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Solution

The fourth proportional to 671,637.30, 926,855.50 and 365,712.95 is: 504,681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,637.30 : 926,855.50 = 365,712.95 : x
  2. Step 2: Convert to fraction form
    671,637.30/926,855.50 = 365,712.95/x
  3. Step 3: Cross multiply
    671,637.30x = 926,855.50 × 365,712.95
  4. Step 4: Simplify right side
    671,637.30x = 338,963,059,128.73
  5. Step 5: Solve for x
    x = 338,963,059,128.73/671,637.30
  6. Step 6: Final answer
    x = 504,681.71

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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.