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Finding the Fourth Proportional to 411,442.48, 567,904.75 and 239,393.67

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Solution

The fourth proportional to 411,442.48, 567,904.75 and 239,393.67 is: 330,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,442.48 : 567,904.75 = 239,393.67 : x
  2. Step 2: Convert to fraction form
    411,442.48/567,904.75 = 239,393.67/x
  3. Step 3: Cross multiply
    411,442.48x = 567,904.75 × 239,393.67
  4. Step 4: Simplify right side
    411,442.48x = 135,952,803,134.21
  5. Step 5: Solve for x
    x = 135,952,803,134.21/411,442.48
  6. Step 6: Final answer
    x = 330,429.67

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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.