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Finding the Fourth Proportional to 255,772.38, 352,853.91 and 243,913.98

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Solution

The fourth proportional to 255,772.38, 352,853.91 and 243,913.98 is: 336,494.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,772.38 : 352,853.91 = 243,913.98 : x
  2. Step 2: Convert to fraction form
    255,772.38/352,853.91 = 243,913.98/x
  3. Step 3: Cross multiply
    255,772.38x = 352,853.91 × 243,913.98
  4. Step 4: Simplify right side
    255,772.38x = 86,066,001,546.66
  5. Step 5: Solve for x
    x = 86,066,001,546.66/255,772.38
  6. Step 6: Final answer
    x = 336,494.51

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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.