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Finding the Fourth Proportional to 895,906.40, 1,236,350.88 and 493,498.40

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Solution

The fourth proportional to 895,906.40, 1,236,350.88 and 493,498.40 is: 681,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,906.40 : 1,236,350.88 = 493,498.40 : x
  2. Step 2: Convert to fraction form
    895,906.40/1,236,350.88 = 493,498.40/x
  3. Step 3: Cross multiply
    895,906.40x = 1,236,350.88 × 493,498.40
  4. Step 4: Simplify right side
    895,906.40x = 610,137,181,118.59
  5. Step 5: Solve for x
    x = 610,137,181,118.59/895,906.40
  6. Step 6: Final answer
    x = 681,027.82

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Double scale
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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.