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Finding the Fourth Proportional to 407,758.54, 562,665.60 and 238,091.08

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Solution

The fourth proportional to 407,758.54, 562,665.60 and 238,091.08 is: 328,541.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,758.54 : 562,665.60 = 238,091.08 : x
  2. Step 2: Convert to fraction form
    407,758.54/562,665.60 = 238,091.08/x
  3. Step 3: Cross multiply
    407,758.54x = 562,665.60 × 238,091.08
  4. Step 4: Simplify right side
    407,758.54x = 133,965,660,382.85
  5. Step 5: Solve for x
    x = 133,965,660,382.85/407,758.54
  6. Step 6: Final answer
    x = 328,541.64

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1.5x scale

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.