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Finding the Fourth Proportional to 620,758.69, 931,138.03 and 177,526.69

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Solution

The fourth proportional to 620,758.69, 931,138.03 and 177,526.69 is: 266,290.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,758.69 : 931,138.03 = 177,526.69 : x
  2. Step 2: Convert to fraction form
    620,758.69/931,138.03 = 177,526.69/x
  3. Step 3: Cross multiply
    620,758.69x = 931,138.03 × 177,526.69
  4. Step 4: Simplify right side
    620,758.69x = 165,301,850,293.08
  5. Step 5: Solve for x
    x = 165,301,850,293.08/620,758.69
  6. Step 6: Final answer
    x = 266,290.03

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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.