Home / 819,185.76-1,129,948.68-543,537.72

Finding the Fourth Proportional to 819,185.76, 1,129,948.68 and 543,537.72

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Solution

The fourth proportional to 819,185.76, 1,129,948.68 and 543,537.72 is: 749,731.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,185.76 : 1,129,948.68 = 543,537.72 : x
  2. Step 2: Convert to fraction form
    819,185.76/1,129,948.68 = 543,537.72/x
  3. Step 3: Cross multiply
    819,185.76x = 1,129,948.68 × 543,537.72
  4. Step 4: Simplify right side
    819,185.76x = 614,169,729,244.21
  5. Step 5: Solve for x
    x = 614,169,729,244.21/819,185.76
  6. Step 6: Final answer
    x = 749,731.94

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Double scale
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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.