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Finding the Fourth Proportional to 380,832.17, 525,528.17 and 219,677.63

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Solution

The fourth proportional to 380,832.17, 525,528.17 and 219,677.63 is: 303,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,832.17 : 525,528.17 = 219,677.63 : x
  2. Step 2: Convert to fraction form
    380,832.17/525,528.17 = 219,677.63/x
  3. Step 3: Cross multiply
    380,832.17x = 525,528.17 × 219,677.63
  4. Step 4: Simplify right side
    380,832.17x = 115,446,781,785.45
  5. Step 5: Solve for x
    x = 115,446,781,785.45/380,832.17
  6. Step 6: Final answer
    x = 303,143.46

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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.