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Finding the Fourth Proportional to 526,787.64, 790,307.21 and 171,802

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Solution

The fourth proportional to 526,787.64, 790,307.21 and 171,802 is: 257,744.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,787.64 : 790,307.21 = 171,802 : x
  2. Step 2: Convert to fraction form
    526,787.64/790,307.21 = 171,802/x
  3. Step 3: Cross multiply
    526,787.64x = 790,307.21 × 171,802
  4. Step 4: Simplify right side
    526,787.64x = 135,776,359,292.42
  5. Step 5: Solve for x
    x = 135,776,359,292.42/526,787.64
  6. Step 6: Final answer
    x = 257,744.01

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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.