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Finding the Fourth Proportional to 3,307.78, 4,564.74 and 1,910.53

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Solution

The fourth proportional to 3,307.78, 4,564.74 and 1,910.53 is: 2,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.78 : 4,564.74 = 1,910.53 : x
  2. Step 2: Convert to fraction form
    3,307.78/4,564.74 = 1,910.53/x
  3. Step 3: Cross multiply
    3,307.78x = 4,564.74 × 1,910.53
  4. Step 4: Simplify right side
    3,307.78x = 8,721,085.58
  5. Step 5: Solve for x
    x = 8,721,085.58/3,307.78
  6. Step 6: Final answer
    x = 2,636.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.