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Finding the Fourth Proportional to 702,953.88, 1,054,212.74 and 253,616.34

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Solution

The fourth proportional to 702,953.88, 1,054,212.74 and 253,616.34 is: 380,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,953.88 : 1,054,212.74 = 253,616.34 : x
  2. Step 2: Convert to fraction form
    702,953.88/1,054,212.74 = 253,616.34/x
  3. Step 3: Cross multiply
    702,953.88x = 1,054,212.74 × 253,616.34
  4. Step 4: Simplify right side
    702,953.88x = 267,365,576,700.17
  5. Step 5: Solve for x
    x = 267,365,576,700.17/702,953.88
  6. Step 6: Final answer
    x = 380,345.83

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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.