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Finding the Fourth Proportional to 581,618.70, 872,070.84 and 226,218.51

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Solution

The fourth proportional to 581,618.70, 872,070.84 and 226,218.51 is: 339,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,618.70 : 872,070.84 = 226,218.51 : x
  2. Step 2: Convert to fraction form
    581,618.70/872,070.84 = 226,218.51/x
  3. Step 3: Cross multiply
    581,618.70x = 872,070.84 × 226,218.51
  4. Step 4: Simplify right side
    581,618.70x = 197,278,566,039.25
  5. Step 5: Solve for x
    x = 197,278,566,039.25/581,618.70
  6. Step 6: Final answer
    x = 339,188.83

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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.