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Finding the Fourth Proportional to 621,362.98, 932,034.95 and 279,564.98

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Solution

The fourth proportional to 621,362.98, 932,034.95 and 279,564.98 is: 419,343.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,362.98 : 932,034.95 = 279,564.98 : x
  2. Step 2: Convert to fraction form
    621,362.98/932,034.95 = 279,564.98/x
  3. Step 3: Cross multiply
    621,362.98x = 932,034.95 × 279,564.98
  4. Step 4: Simplify right side
    621,362.98x = 260,564,330,758.23
  5. Step 5: Solve for x
    x = 260,564,330,758.23/621,362.98
  6. Step 6: Final answer
    x = 419,343.19

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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.