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Finding the Fourth Proportional to 412,806.60, 618,616.98 and 176,085.72

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Solution

The fourth proportional to 412,806.60, 618,616.98 and 176,085.72 is: 263,875.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,806.60 : 618,616.98 = 176,085.72 : x
  2. Step 2: Convert to fraction form
    412,806.60/618,616.98 = 176,085.72/x
  3. Step 3: Cross multiply
    412,806.60x = 618,616.98 × 176,085.72
  4. Step 4: Simplify right side
    412,806.60x = 108,929,616,327.53
  5. Step 5: Solve for x
    x = 108,929,616,327.53/412,806.60
  6. Step 6: Final answer
    x = 263,875.67

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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.