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Finding the Fourth Proportional to 363,351.81, 500,905.83 and 255,587.38

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Solution

The fourth proportional to 363,351.81, 500,905.83 and 255,587.38 is: 352,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,351.81 : 500,905.83 = 255,587.38 : x
  2. Step 2: Convert to fraction form
    363,351.81/500,905.83 = 255,587.38/x
  3. Step 3: Cross multiply
    363,351.81x = 500,905.83 × 255,587.38
  4. Step 4: Simplify right side
    363,351.81x = 128,025,208,716.43
  5. Step 5: Solve for x
    x = 128,025,208,716.43/363,351.81
  6. Step 6: Final answer
    x = 352,345.05

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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.