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Finding the Fourth Proportional to 895,999.98, 1,236,479.44 and 493,591.98

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Solution

The fourth proportional to 895,999.98, 1,236,479.44 and 493,591.98 is: 681,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,999.98 : 1,236,479.44 = 493,591.98 : x
  2. Step 2: Convert to fraction form
    895,999.98/1,236,479.44 = 493,591.98/x
  3. Step 3: Cross multiply
    895,999.98x = 1,236,479.44 × 493,591.98
  4. Step 4: Simplify right side
    895,999.98x = 610,316,335,018.89
  5. Step 5: Solve for x
    x = 610,316,335,018.89/895,999.98
  6. Step 6: Final answer
    x = 681,156.64

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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.