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Finding the Fourth Proportional to 375,515.10, 562,546.80 and 208,797.66

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Solution

The fourth proportional to 375,515.10, 562,546.80 and 208,797.66 is: 312,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,515.10 : 562,546.80 = 208,797.66 : x
  2. Step 2: Convert to fraction form
    375,515.10/562,546.80 = 208,797.66/x
  3. Step 3: Cross multiply
    375,515.10x = 562,546.80 × 208,797.66
  4. Step 4: Simplify right side
    375,515.10x = 117,458,455,480.49
  5. Step 5: Solve for x
    x = 117,458,455,480.49/375,515.10
  6. Step 6: Final answer
    x = 312,792.90

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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.