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Finding the Fourth Proportional to 521,243.75, 719,311.52 and 294,889.25

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Solution

The fourth proportional to 521,243.75, 719,311.52 and 294,889.25 is: 406,944.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,243.75 : 719,311.52 = 294,889.25 : x
  2. Step 2: Convert to fraction form
    521,243.75/719,311.52 = 294,889.25/x
  3. Step 3: Cross multiply
    521,243.75x = 719,311.52 × 294,889.25
  4. Step 4: Simplify right side
    521,243.75x = 212,117,233,174.71
  5. Step 5: Solve for x
    x = 212,117,233,174.71/521,243.75
  6. Step 6: Final answer
    x = 406,944.42

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1.5x scale

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.