Home / 383,856.40-529,720.08-211,769.68

Finding the Fourth Proportional to 383,856.40, 529,720.08 and 211,769.68

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Solution

The fourth proportional to 383,856.40, 529,720.08 and 211,769.68 is: 292,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,856.40 : 529,720.08 = 211,769.68 : x
  2. Step 2: Convert to fraction form
    383,856.40/529,720.08 = 211,769.68/x
  3. Step 3: Cross multiply
    383,856.40x = 529,720.08 × 211,769.68
  4. Step 4: Simplify right side
    383,856.40x = 112,178,651,831.17
  5. Step 5: Solve for x
    x = 112,178,651,831.17/383,856.40
  6. Step 6: Final answer
    x = 292,241.19

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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.