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Finding the Fourth Proportional to 504,551.36, 696,286.32 and 275,106.78

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Solution

The fourth proportional to 504,551.36, 696,286.32 and 275,106.78 is: 379,650.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,551.36 : 696,286.32 = 275,106.78 : x
  2. Step 2: Convert to fraction form
    504,551.36/696,286.32 = 275,106.78/x
  3. Step 3: Cross multiply
    504,551.36x = 696,286.32 × 275,106.78
  4. Step 4: Simplify right side
    504,551.36x = 191,553,087,453.25
  5. Step 5: Solve for x
    x = 191,553,087,453.25/504,551.36
  6. Step 6: Final answer
    x = 379,650.32

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