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Finding the Fourth Proportional to 702,985.56, 1,054,260 and 253,647.96

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Solution

The fourth proportional to 702,985.56, 1,054,260 and 253,647.96 is: 380,393.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,985.56 : 1,054,260 = 253,647.96 : x
  2. Step 2: Convert to fraction form
    702,985.56/1,054,260 = 253,647.96/x
  3. Step 3: Cross multiply
    702,985.56x = 1,054,260 × 253,647.96
  4. Step 4: Simplify right side
    702,985.56x = 267,410,898,309.60
  5. Step 5: Solve for x
    x = 267,410,898,309.60/702,985.56
  6. Step 6: Final answer
    x = 380,393.16

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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.