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Finding the Fourth Proportional to 625,779.53, 938,358.44 and 199,259.67

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Solution

The fourth proportional to 625,779.53, 938,358.44 and 199,259.67 is: 298,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,779.53 : 938,358.44 = 199,259.67 : x
  2. Step 2: Convert to fraction form
    625,779.53/938,358.44 = 199,259.67/x
  3. Step 3: Cross multiply
    625,779.53x = 938,358.44 × 199,259.67
  4. Step 4: Simplify right side
    625,779.53x = 186,976,993,096.12
  5. Step 5: Solve for x
    x = 186,976,993,096.12/625,779.53
  6. Step 6: Final answer
    x = 298,790.52

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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.