Home / 889,021.89-1,226,850.33-481,123.86

Finding the Fourth Proportional to 889,021.89, 1,226,850.33 and 481,123.86

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Solution

The fourth proportional to 889,021.89, 1,226,850.33 and 481,123.86 is: 663,950.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,021.89 : 1,226,850.33 = 481,123.86 : x
  2. Step 2: Convert to fraction form
    889,021.89/1,226,850.33 = 481,123.86/x
  3. Step 3: Cross multiply
    889,021.89x = 1,226,850.33 × 481,123.86
  4. Step 4: Simplify right side
    889,021.89x = 590,266,966,411.87
  5. Step 5: Solve for x
    x = 590,266,966,411.87/889,021.89
  6. Step 6: Final answer
    x = 663,950.99

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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.