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Finding the Fourth Proportional to 555,137.16, 831,833.46 and 429,086.04

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Solution

The fourth proportional to 555,137.16, 831,833.46 and 429,086.04 is: 642,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,137.16 : 831,833.46 = 429,086.04 : x
  2. Step 2: Convert to fraction form
    555,137.16/831,833.46 = 429,086.04/x
  3. Step 3: Cross multiply
    555,137.16x = 831,833.46 × 429,086.04
  4. Step 4: Simplify right side
    555,137.16x = 356,928,125,290.90
  5. Step 5: Solve for x
    x = 356,928,125,290.90/555,137.16
  6. Step 6: Final answer
    x = 642,954.84

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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.