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Finding the Fourth Proportional to 522,485.76, 783,613.44 and 255,982.08

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Solution

The fourth proportional to 522,485.76, 783,613.44 and 255,982.08 is: 383,916.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,485.76 : 783,613.44 = 255,982.08 : x
  2. Step 2: Convert to fraction form
    522,485.76/783,613.44 = 255,982.08/x
  3. Step 3: Cross multiply
    522,485.76x = 783,613.44 × 255,982.08
  4. Step 4: Simplify right side
    522,485.76x = 200,590,998,287.16
  5. Step 5: Solve for x
    x = 200,590,998,287.16/522,485.76
  6. Step 6: Final answer
    x = 383,916.68

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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.