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Finding the Fourth Proportional to 360,779.00, 541,355.15 and 261,756.50

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Solution

The fourth proportional to 360,779.00, 541,355.15 and 261,756.50 is: 392,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,779.00 : 541,355.15 = 261,756.50 : x
  2. Step 2: Convert to fraction form
    360,779.00/541,355.15 = 261,756.50/x
  3. Step 3: Cross multiply
    360,779.00x = 541,355.15 × 261,756.50
  4. Step 4: Simplify right side
    360,779.00x = 141,703,225,796.21
  5. Step 5: Solve for x
    x = 141,703,225,796.21/360,779.00
  6. Step 6: Final answer
    x = 392,770.17

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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.