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Finding the Fourth Proportional to 353,325.06, 528,762.87 and 338,628.42

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Solution

The fourth proportional to 353,325.06, 528,762.87 and 338,628.42 is: 506,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,325.06 : 528,762.87 = 338,628.42 : x
  2. Step 2: Convert to fraction form
    353,325.06/528,762.87 = 338,628.42/x
  3. Step 3: Cross multiply
    353,325.06x = 528,762.87 × 338,628.42
  4. Step 4: Simplify right side
    353,325.06x = 179,054,135,222.77
  5. Step 5: Solve for x
    x = 179,054,135,222.77/353,325.06
  6. Step 6: Final answer
    x = 506,768.85

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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.