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Finding the Fourth Proportional to 702,960.10, 1,054,440.15 and 253,750.30

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Solution

The fourth proportional to 702,960.10, 1,054,440.15 and 253,750.30 is: 380,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,960.10 : 1,054,440.15 = 253,750.30 : x
  2. Step 2: Convert to fraction form
    702,960.10/1,054,440.15 = 253,750.30/x
  3. Step 3: Cross multiply
    702,960.10x = 1,054,440.15 × 253,750.30
  4. Step 4: Simplify right side
    702,960.10x = 267,564,504,394.55
  5. Step 5: Solve for x
    x = 267,564,504,394.55/702,960.10
  6. Step 6: Final answer
    x = 380,625.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.