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Finding the Fourth Proportional to 503,979.57, 755,569.62 and 251,122.28

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Solution

The fourth proportional to 503,979.57, 755,569.62 and 251,122.28 is: 376,484.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,979.57 : 755,569.62 = 251,122.28 : x
  2. Step 2: Convert to fraction form
    503,979.57/755,569.62 = 251,122.28/x
  3. Step 3: Cross multiply
    503,979.57x = 755,569.62 × 251,122.28
  4. Step 4: Simplify right side
    503,979.57x = 189,740,361,895.29
  5. Step 5: Solve for x
    x = 189,740,361,895.29/503,979.57
  6. Step 6: Final answer
    x = 376,484.23

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Half scale
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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.