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Finding the Fourth Proportional to 4,609.84, 6,915.66 and 1,490.62

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Solution

The fourth proportional to 4,609.84, 6,915.66 and 1,490.62 is: 2,236.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.84 : 6,915.66 = 1,490.62 : x
  2. Step 2: Convert to fraction form
    4,609.84/6,915.66 = 1,490.62/x
  3. Step 3: Cross multiply
    4,609.84x = 6,915.66 × 1,490.62
  4. Step 4: Simplify right side
    4,609.84x = 10,308,621.11
  5. Step 5: Solve for x
    x = 10,308,621.11/4,609.84
  6. Step 6: Final answer
    x = 2,236.22

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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.