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Finding the Fourth Proportional to 3,360.61, 5,040.78 and 895.51

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Solution

The fourth proportional to 3,360.61, 5,040.78 and 895.51 is: 1,343.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.61 : 5,040.78 = 895.51 : x
  2. Step 2: Convert to fraction form
    3,360.61/5,040.78 = 895.51/x
  3. Step 3: Cross multiply
    3,360.61x = 5,040.78 × 895.51
  4. Step 4: Simplify right side
    3,360.61x = 4,514,068.90
  5. Step 5: Solve for x
    x = 4,514,068.90/3,360.61
  6. Step 6: Final answer
    x = 1,343.23

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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.