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Finding the Fourth Proportional to 407,301.60, 611,171.10 and 170,668.20

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Solution

The fourth proportional to 407,301.60, 611,171.10 and 170,668.20 is: 256,093.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,301.60 : 611,171.10 = 170,668.20 : x
  2. Step 2: Convert to fraction form
    407,301.60/611,171.10 = 170,668.20/x
  3. Step 3: Cross multiply
    407,301.60x = 611,171.10 × 170,668.20
  4. Step 4: Simplify right side
    407,301.60x = 104,307,471,529.02
  5. Step 5: Solve for x
    x = 104,307,471,529.02/407,301.60
  6. Step 6: Final answer
    x = 256,093.94

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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.