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Finding the Fourth Proportional to 377,098.68, 519,886.80 and 256,029.78

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Solution

The fourth proportional to 377,098.68, 519,886.80 and 256,029.78 is: 352,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,098.68 : 519,886.80 = 256,029.78 : x
  2. Step 2: Convert to fraction form
    377,098.68/519,886.80 = 256,029.78/x
  3. Step 3: Cross multiply
    377,098.68x = 519,886.80 × 256,029.78
  4. Step 4: Simplify right side
    377,098.68x = 133,106,503,028.90
  5. Step 5: Solve for x
    x = 133,106,503,028.90/377,098.68
  6. Step 6: Final answer
    x = 352,975.26

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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.