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Finding the Fourth Proportional to 355,402.10, 532,228.35 and 236,429.30

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Solution

The fourth proportional to 355,402.10, 532,228.35 and 236,429.30 is: 354,061.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,402.10 : 532,228.35 = 236,429.30 : x
  2. Step 2: Convert to fraction form
    355,402.10/532,228.35 = 236,429.30/x
  3. Step 3: Cross multiply
    355,402.10x = 532,228.35 × 236,429.30
  4. Step 4: Simplify right side
    355,402.10x = 125,834,376,230.66
  5. Step 5: Solve for x
    x = 125,834,376,230.66/355,402.10
  6. Step 6: Final answer
    x = 354,061.99

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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.