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Finding the Fourth Proportional to 492,102.57, 679,101.57 and 265,748.07

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Solution

The fourth proportional to 492,102.57, 679,101.57 and 265,748.07 is: 366,732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,102.57 : 679,101.57 = 265,748.07 : x
  2. Step 2: Convert to fraction form
    492,102.57/679,101.57 = 265,748.07/x
  3. Step 3: Cross multiply
    492,102.57x = 679,101.57 × 265,748.07
  4. Step 4: Simplify right side
    492,102.57x = 180,469,931,561.47
  5. Step 5: Solve for x
    x = 180,469,931,561.47/492,102.57
  6. Step 6: Final answer
    x = 366,732.35

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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.