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Finding the Fourth Proportional to 620,952.54, 931,790.23 and 261,097.35

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Solution

The fourth proportional to 620,952.54, 931,790.23 and 261,097.35 is: 391,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,952.54 : 931,790.23 = 261,097.35 : x
  2. Step 2: Convert to fraction form
    620,952.54/931,790.23 = 261,097.35/x
  3. Step 3: Cross multiply
    620,952.54x = 931,790.23 × 261,097.35
  4. Step 4: Simplify right side
    620,952.54x = 243,287,959,808.89
  5. Step 5: Solve for x
    x = 243,287,959,808.89/620,952.54
  6. Step 6: Final answer
    x = 391,797.99

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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.