Home / 644,584.29-888,916.59-423,431.13

Finding the Fourth Proportional to 644,584.29, 888,916.59 and 423,431.13

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Solution

The fourth proportional to 644,584.29, 888,916.59 and 423,431.13 is: 583,934.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,584.29 : 888,916.59 = 423,431.13 : x
  2. Step 2: Convert to fraction form
    644,584.29/888,916.59 = 423,431.13/x
  3. Step 3: Cross multiply
    644,584.29x = 888,916.59 × 423,431.13
  4. Step 4: Simplify right side
    644,584.29x = 376,394,956,179.45
  5. Step 5: Solve for x
    x = 376,394,956,179.45/644,584.29
  6. Step 6: Final answer
    x = 583,934.42

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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.