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Finding the Fourth Proportional to 633,689.73, 874,595.61 and 361,768.95

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Solution

The fourth proportional to 633,689.73, 874,595.61 and 361,768.95 is: 499,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,689.73 : 874,595.61 = 361,768.95 : x
  2. Step 2: Convert to fraction form
    633,689.73/874,595.61 = 361,768.95/x
  3. Step 3: Cross multiply
    633,689.73x = 874,595.61 × 361,768.95
  4. Step 4: Simplify right side
    633,689.73x = 316,401,535,504.31
  5. Step 5: Solve for x
    x = 316,401,535,504.31/633,689.73
  6. Step 6: Final answer
    x = 499,300.40

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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.