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Finding the Fourth Proportional to 521,668.24, 719,902.20 and 295,313.76

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Solution

The fourth proportional to 521,668.24, 719,902.20 and 295,313.76 is: 407,533.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,668.24 : 719,902.20 = 295,313.76 : x
  2. Step 2: Convert to fraction form
    521,668.24/719,902.20 = 295,313.76/x
  3. Step 3: Cross multiply
    521,668.24x = 719,902.20 × 295,313.76
  4. Step 4: Simplify right side
    521,668.24x = 212,597,025,514.27
  5. Step 5: Solve for x
    x = 212,597,025,514.27/521,668.24
  6. Step 6: Final answer
    x = 407,533.01

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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.