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Finding the Fourth Proportional to 594,678.12, 891,817.25 and 215,519.47

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Solution

The fourth proportional to 594,678.12, 891,817.25 and 215,519.47 is: 323,206.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,678.12 : 891,817.25 = 215,519.47 : x
  2. Step 2: Convert to fraction form
    594,678.12/891,817.25 = 215,519.47/x
  3. Step 3: Cross multiply
    594,678.12x = 891,817.25 × 215,519.47
  4. Step 4: Simplify right side
    594,678.12x = 192,203,977,749.72
  5. Step 5: Solve for x
    x = 192,203,977,749.72/594,678.12
  6. Step 6: Final answer
    x = 323,206.74

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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.