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Finding the Fourth Proportional to 348,898.10, 522,051.15 and 255,586.10

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Solution

The fourth proportional to 348,898.10, 522,051.15 and 255,586.10 is: 382,429.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,898.10 : 522,051.15 = 255,586.10 : x
  2. Step 2: Convert to fraction form
    348,898.10/522,051.15 = 255,586.10/x
  3. Step 3: Cross multiply
    348,898.10x = 522,051.15 × 255,586.10
  4. Step 4: Simplify right side
    348,898.10x = 133,429,017,429.02
  5. Step 5: Solve for x
    x = 133,429,017,429.02/348,898.10
  6. Step 6: Final answer
    x = 382,429.76

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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.