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Finding the Fourth Proportional to 522,065.55, 783,098.33 and 256,345.05

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Solution

The fourth proportional to 522,065.55, 783,098.33 and 256,345.05 is: 384,517.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,065.55 : 783,098.33 = 256,345.05 : x
  2. Step 2: Convert to fraction form
    522,065.55/783,098.33 = 256,345.05/x
  3. Step 3: Cross multiply
    522,065.55x = 783,098.33 × 256,345.05
  4. Step 4: Simplify right side
    522,065.55x = 200,743,379,277.04
  5. Step 5: Solve for x
    x = 200,743,379,277.04/522,065.55
  6. Step 6: Final answer
    x = 384,517.58

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Double scale
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Similar ratio
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1.5x scale

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.