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Finding the Fourth Proportional to 703,109.56, 1,054,448.78 and 253,775.56

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Solution

The fourth proportional to 703,109.56, 1,054,448.78 and 253,775.56 is: 380,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,109.56 : 1,054,448.78 = 253,775.56 : x
  2. Step 2: Convert to fraction form
    703,109.56/1,054,448.78 = 253,775.56/x
  3. Step 3: Cross multiply
    703,109.56x = 1,054,448.78 × 253,775.56
  4. Step 4: Simplify right side
    703,109.56x = 267,593,329,635.82
  5. Step 5: Solve for x
    x = 267,593,329,635.82/703,109.56
  6. Step 6: Final answer
    x = 380,585.54

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Double scale
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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.