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Finding the Fourth Proportional to 348,898.60, 522,051.90 and 255,586.60

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Solution

The fourth proportional to 348,898.60, 522,051.90 and 255,586.60 is: 382,430.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,898.60 : 522,051.90 = 255,586.60 : x
  2. Step 2: Convert to fraction form
    348,898.60/522,051.90 = 255,586.60/x
  3. Step 3: Cross multiply
    348,898.60x = 522,051.90 × 255,586.60
  4. Step 4: Simplify right side
    348,898.60x = 133,429,470,144.54
  5. Step 5: Solve for x
    x = 133,429,470,144.54/348,898.60
  6. Step 6: Final answer
    x = 382,430.51

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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.