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Finding the Fourth Proportional to 353,118.60, 528,803.10 and 226,564.20

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Solution

The fourth proportional to 353,118.60, 528,803.10 and 226,564.20 is: 339,285.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,118.60 : 528,803.10 = 226,564.20 : x
  2. Step 2: Convert to fraction form
    353,118.60/528,803.10 = 226,564.20/x
  3. Step 3: Cross multiply
    353,118.60x = 528,803.10 × 226,564.20
  4. Step 4: Simplify right side
    353,118.60x = 119,807,851,309.02
  5. Step 5: Solve for x
    x = 119,807,851,309.02/353,118.60
  6. Step 6: Final answer
    x = 339,285.02

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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.