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Finding the Fourth Proportional to 2,603.76, 3,904.66 and 848.30

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Solution

The fourth proportional to 2,603.76, 3,904.66 and 848.30 is: 1,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.76 : 3,904.66 = 848.30 : x
  2. Step 2: Convert to fraction form
    2,603.76/3,904.66 = 848.30/x
  3. Step 3: Cross multiply
    2,603.76x = 3,904.66 × 848.30
  4. Step 4: Simplify right side
    2,603.76x = 3,312,323.08
  5. Step 5: Solve for x
    x = 3,312,323.08/2,603.76
  6. Step 6: Final answer
    x = 1,272.13

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1.5x scale

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.