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Finding the Fourth Proportional to 415,787.56, 573,875.85 and 262,728.58

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Solution

The fourth proportional to 415,787.56, 573,875.85 and 262,728.58 is: 362,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,787.56 : 573,875.85 = 262,728.58 : x
  2. Step 2: Convert to fraction form
    415,787.56/573,875.85 = 262,728.58/x
  3. Step 3: Cross multiply
    415,787.56x = 573,875.85 × 262,728.58
  4. Step 4: Simplify right side
    415,787.56x = 150,773,587,166.79
  5. Step 5: Solve for x
    x = 150,773,587,166.79/415,787.56
  6. Step 6: Final answer
    x = 362,621.69

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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.