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Finding the Fourth Proportional to 341,429.15, 511,744.95 and 256,917.66

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Solution

The fourth proportional to 341,429.15, 511,744.95 and 256,917.66 is: 385,076.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,429.15 : 511,744.95 = 256,917.66 : x
  2. Step 2: Convert to fraction form
    341,429.15/511,744.95 = 256,917.66/x
  3. Step 3: Cross multiply
    341,429.15x = 511,744.95 × 256,917.66
  4. Step 4: Simplify right side
    341,429.15x = 131,476,315,070.82
  5. Step 5: Solve for x
    x = 131,476,315,070.82/341,429.15
  6. Step 6: Final answer
    x = 385,076.43

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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.