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Finding the Fourth Proportional to 633,384.01, 874,061.13 and 361,538.11

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Solution

The fourth proportional to 633,384.01, 874,061.13 and 361,538.11 is: 498,917.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,384.01 : 874,061.13 = 361,538.11 : x
  2. Step 2: Convert to fraction form
    633,384.01/874,061.13 = 361,538.11/x
  3. Step 3: Cross multiply
    633,384.01x = 874,061.13 × 361,538.11
  4. Step 4: Simplify right side
    633,384.01x = 316,006,408,964.66
  5. Step 5: Solve for x
    x = 316,006,408,964.66/633,384.01
  6. Step 6: Final answer
    x = 498,917.57

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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.