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Finding the Fourth Proportional to 504,546.76, 696,271.71 and 278,192.26

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Solution

The fourth proportional to 504,546.76, 696,271.71 and 278,192.26 is: 383,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,546.76 : 696,271.71 = 278,192.26 : x
  2. Step 2: Convert to fraction form
    504,546.76/696,271.71 = 278,192.26/x
  3. Step 3: Cross multiply
    504,546.76x = 696,271.71 × 278,192.26
  4. Step 4: Simplify right side
    504,546.76x = 193,697,400,578.97
  5. Step 5: Solve for x
    x = 193,697,400,578.97/504,546.76
  6. Step 6: Final answer
    x = 383,903.76

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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.