Home / 829,311.78-1,144,803.39-557,537.28

Finding the Fourth Proportional to 829,311.78, 1,144,803.39 and 557,537.28

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Solution

The fourth proportional to 829,311.78, 1,144,803.39 and 557,537.28 is: 769,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,311.78 : 1,144,803.39 = 557,537.28 : x
  2. Step 2: Convert to fraction form
    829,311.78/1,144,803.39 = 557,537.28/x
  3. Step 3: Cross multiply
    829,311.78x = 1,144,803.39 × 557,537.28
  4. Step 4: Simplify right side
    829,311.78x = 638,270,568,195.38
  5. Step 5: Solve for x
    x = 638,270,568,195.38/829,311.78
  6. Step 6: Final answer
    x = 769,638.85

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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.