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Finding the Fourth Proportional to 1,335.46, 2,000.46 and 848.86

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Solution

The fourth proportional to 1,335.46, 2,000.46 and 848.86 is: 1,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.46 : 2,000.46 = 848.86 : x
  2. Step 2: Convert to fraction form
    1,335.46/2,000.46 = 848.86/x
  3. Step 3: Cross multiply
    1,335.46x = 2,000.46 × 848.86
  4. Step 4: Simplify right side
    1,335.46x = 1,698,110.48
  5. Step 5: Solve for x
    x = 1,698,110.48/1,335.46
  6. Step 6: Final answer
    x = 1,271.55

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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.