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Finding the Fourth Proportional to 2,353.43, 3,530.70 and 709.99

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Solution

The fourth proportional to 2,353.43, 3,530.70 and 709.99 is: 1,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.43 : 3,530.70 = 709.99 : x
  2. Step 2: Convert to fraction form
    2,353.43/3,530.70 = 709.99/x
  3. Step 3: Cross multiply
    2,353.43x = 3,530.70 × 709.99
  4. Step 4: Simplify right side
    2,353.43x = 2,506,750.20
  5. Step 5: Solve for x
    x = 2,506,750.20/2,353.43
  6. Step 6: Final answer
    x = 1,065.15

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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.