Home / 543,386.44-815,123.34-206,588.20

Finding the Fourth Proportional to 543,386.44, 815,123.34 and 206,588.20

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Solution

The fourth proportional to 543,386.44, 815,123.34 and 206,588.20 is: 309,898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,386.44 : 815,123.34 = 206,588.20 : x
  2. Step 2: Convert to fraction form
    543,386.44/815,123.34 = 206,588.20/x
  3. Step 3: Cross multiply
    543,386.44x = 815,123.34 × 206,588.20
  4. Step 4: Simplify right side
    543,386.44x = 168,394,863,588.59
  5. Step 5: Solve for x
    x = 168,394,863,588.59/543,386.44
  6. Step 6: Final answer
    x = 309,898.91

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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.