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Finding the Fourth Proportional to 367,894.70, 507,378.54 and 238,705.88

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Solution

The fourth proportional to 367,894.70, 507,378.54 and 238,705.88 is: 329,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,894.70 : 507,378.54 = 238,705.88 : x
  2. Step 2: Convert to fraction form
    367,894.70/507,378.54 = 238,705.88/x
  3. Step 3: Cross multiply
    367,894.70x = 507,378.54 × 238,705.88
  4. Step 4: Simplify right side
    367,894.70x = 121,114,238,346.92
  5. Step 5: Solve for x
    x = 121,114,238,346.92/367,894.70
  6. Step 6: Final answer
    x = 329,208.98

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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.