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Finding the Fourth Proportional to 620,847.52, 931,271.30 and 177,615.52

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Solution

The fourth proportional to 620,847.52, 931,271.30 and 177,615.52 is: 266,423.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,847.52 : 931,271.30 = 177,615.52 : x
  2. Step 2: Convert to fraction form
    620,847.52/931,271.30 = 177,615.52/x
  3. Step 3: Cross multiply
    620,847.52x = 931,271.30 × 177,615.52
  4. Step 4: Simplify right side
    620,847.52x = 165,408,236,210.58
  5. Step 5: Solve for x
    x = 165,408,236,210.58/620,847.52
  6. Step 6: Final answer
    x = 266,423.29

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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.