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Finding the Fourth Proportional to 455,792.80, 683,722.45 and 156,270.85

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Solution

The fourth proportional to 455,792.80, 683,722.45 and 156,270.85 is: 234,417.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,792.80 : 683,722.45 = 156,270.85 : x
  2. Step 2: Convert to fraction form
    455,792.80/683,722.45 = 156,270.85/x
  3. Step 3: Cross multiply
    455,792.80x = 683,722.45 × 156,270.85
  4. Step 4: Simplify right side
    455,792.80x = 106,845,888,425.58
  5. Step 5: Solve for x
    x = 106,845,888,425.58/455,792.80
  6. Step 6: Final answer
    x = 234,417.67

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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.