Home / 876,005.70-1,314,008.55-515,806.80

Finding the Fourth Proportional to 876,005.70, 1,314,008.55 and 515,806.80

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Solution

The fourth proportional to 876,005.70, 1,314,008.55 and 515,806.80 is: 773,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,005.70 : 1,314,008.55 = 515,806.80 : x
  2. Step 2: Convert to fraction form
    876,005.70/1,314,008.55 = 515,806.80/x
  3. Step 3: Cross multiply
    876,005.70x = 1,314,008.55 × 515,806.80
  4. Step 4: Simplify right side
    876,005.70x = 677,774,545,348.14
  5. Step 5: Solve for x
    x = 677,774,545,348.14/876,005.70
  6. Step 6: Final answer
    x = 773,710.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.