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Finding the Fourth Proportional to 504,371.86, 696,046.12 and 286,573.32

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Solution

The fourth proportional to 504,371.86, 696,046.12 and 286,573.32 is: 395,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,371.86 : 696,046.12 = 286,573.32 : x
  2. Step 2: Convert to fraction form
    504,371.86/696,046.12 = 286,573.32/x
  3. Step 3: Cross multiply
    504,371.86x = 696,046.12 × 286,573.32
  4. Step 4: Simplify right side
    504,371.86x = 199,468,246,822.42
  5. Step 5: Solve for x
    x = 199,468,246,822.42/504,371.86
  6. Step 6: Final answer
    x = 395,478.54

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.