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Finding the Fourth Proportional to 895,805, 1,236,210.92 and 493,397

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Solution

The fourth proportional to 895,805, 1,236,210.92 and 493,397 is: 680,887.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,805 : 1,236,210.92 = 493,397 : x
  2. Step 2: Convert to fraction form
    895,805/1,236,210.92 = 493,397/x
  3. Step 3: Cross multiply
    895,805x = 1,236,210.92 × 493,397
  4. Step 4: Simplify right side
    895,805x = 609,942,759,295.24
  5. Step 5: Solve for x
    x = 609,942,759,295.24/895,805
  6. Step 6: Final answer
    x = 680,887.87

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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.