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Finding the Fourth Proportional to 1,093.16, 1,507.78 and 1,056.99

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Solution

The fourth proportional to 1,093.16, 1,507.78 and 1,056.99 is: 1,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.16 : 1,507.78 = 1,056.99 : x
  2. Step 2: Convert to fraction form
    1,093.16/1,507.78 = 1,056.99/x
  3. Step 3: Cross multiply
    1,093.16x = 1,507.78 × 1,056.99
  4. Step 4: Simplify right side
    1,093.16x = 1,593,708.38
  5. Step 5: Solve for x
    x = 1,593,708.38/1,093.16
  6. Step 6: Final answer
    x = 1,457.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.