Home / 895,669.20-1,236,136.50-513,687.78

Finding the Fourth Proportional to 895,669.20, 1,236,136.50 and 513,687.78

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Solution

The fourth proportional to 895,669.20, 1,236,136.50 and 513,687.78 is: 708,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,669.20 : 1,236,136.50 = 513,687.78 : x
  2. Step 2: Convert to fraction form
    895,669.20/1,236,136.50 = 513,687.78/x
  3. Step 3: Cross multiply
    895,669.20x = 1,236,136.50 × 513,687.78
  4. Step 4: Simplify right side
    895,669.20x = 634,988,214,461.97
  5. Step 5: Solve for x
    x = 634,988,214,461.97/895,669.20
  6. Step 6: Final answer
    x = 708,953.95

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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.