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Finding the Fourth Proportional to 633,597.90, 874,427.81 and 361,706.72

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Solution

The fourth proportional to 633,597.90, 874,427.81 and 361,706.72 is: 499,191.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,597.90 : 874,427.81 = 361,706.72 : x
  2. Step 2: Convert to fraction form
    633,597.90/874,427.81 = 361,706.72/x
  3. Step 3: Cross multiply
    633,597.90x = 874,427.81 × 361,706.72
  4. Step 4: Simplify right side
    633,597.90x = 316,286,408,851.21
  5. Step 5: Solve for x
    x = 316,286,408,851.21/633,597.90
  6. Step 6: Final answer
    x = 499,191.07

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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.