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Finding the Fourth Proportional to 366,790.32, 506,391.48 and 239,678.64

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Solution

The fourth proportional to 366,790.32, 506,391.48 and 239,678.64 is: 330,900.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,790.32 : 506,391.48 = 239,678.64 : x
  2. Step 2: Convert to fraction form
    366,790.32/506,391.48 = 239,678.64/x
  3. Step 3: Cross multiply
    366,790.32x = 506,391.48 × 239,678.64
  4. Step 4: Simplify right side
    366,790.32x = 121,371,221,233.99
  5. Step 5: Solve for x
    x = 121,371,221,233.99/366,790.32
  6. Step 6: Final answer
    x = 330,900.83

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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.