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Finding the Fourth Proportional to 895,894.86, 1,236,335.01 and 493,486.86

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Solution

The fourth proportional to 895,894.86, 1,236,335.01 and 493,486.86 is: 681,011.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,894.86 : 1,236,335.01 = 493,486.86 : x
  2. Step 2: Convert to fraction form
    895,894.86/1,236,335.01 = 493,486.86/x
  3. Step 3: Cross multiply
    895,894.86x = 1,236,335.01 × 493,486.86
  4. Step 4: Simplify right side
    895,894.86x = 610,115,081,992.97
  5. Step 5: Solve for x
    x = 610,115,081,992.97/895,894.86
  6. Step 6: Final answer
    x = 681,011.92

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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.