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Finding the Fourth Proportional to 590,634.40, 886,081.20 and 191,207.20

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Solution

The fourth proportional to 590,634.40, 886,081.20 and 191,207.20 is: 286,852.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,634.40 : 886,081.20 = 191,207.20 : x
  2. Step 2: Convert to fraction form
    590,634.40/886,081.20 = 191,207.20/x
  3. Step 3: Cross multiply
    590,634.40x = 886,081.20 × 191,207.20
  4. Step 4: Simplify right side
    590,634.40x = 169,425,105,224.64
  5. Step 5: Solve for x
    x = 169,425,105,224.64/590,634.40
  6. Step 6: Final answer
    x = 286,852.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.