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Finding the Fourth Proportional to 702,958.11, 1,054,384.53 and 253,678.95

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Solution

The fourth proportional to 702,958.11, 1,054,384.53 and 253,678.95 is: 380,499.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,958.11 : 1,054,384.53 = 253,678.95 : x
  2. Step 2: Convert to fraction form
    702,958.11/1,054,384.53 = 253,678.95/x
  3. Step 3: Cross multiply
    702,958.11x = 1,054,384.53 × 253,678.95
  4. Step 4: Simplify right side
    702,958.11x = 267,475,160,466.64
  5. Step 5: Solve for x
    x = 267,475,160,466.64/702,958.11
  6. Step 6: Final answer
    x = 380,499.43

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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.