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Finding the Fourth Proportional to 368,291.24, 508,247.16 and 217,388.24

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Solution

The fourth proportional to 368,291.24, 508,247.16 and 217,388.24 is: 299,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,291.24 : 508,247.16 = 217,388.24 : x
  2. Step 2: Convert to fraction form
    368,291.24/508,247.16 = 217,388.24/x
  3. Step 3: Cross multiply
    368,291.24x = 508,247.16 × 217,388.24
  4. Step 4: Simplify right side
    368,291.24x = 110,486,955,597.40
  5. Step 5: Solve for x
    x = 110,486,955,597.40/368,291.24
  6. Step 6: Final answer
    x = 299,998.87

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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.