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Finding the Fourth Proportional to 528,809.70, 793,351.25 and 229,221.08

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Solution

The fourth proportional to 528,809.70, 793,351.25 and 229,221.08 is: 343,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,809.70 : 793,351.25 = 229,221.08 : x
  2. Step 2: Convert to fraction form
    528,809.70/793,351.25 = 229,221.08/x
  3. Step 3: Cross multiply
    528,809.70x = 793,351.25 × 229,221.08
  4. Step 4: Simplify right side
    528,809.70x = 181,852,825,231.49
  5. Step 5: Solve for x
    x = 181,852,825,231.49/528,809.70
  6. Step 6: Final answer
    x = 343,890.87

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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.