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Finding the Fourth Proportional to 953,456, 1,315,448.90 and 539,936.42

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Solution

The fourth proportional to 953,456, 1,315,448.90 and 539,936.42 is: 744,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,456 : 1,315,448.90 = 539,936.42 : x
  2. Step 2: Convert to fraction form
    953,456/1,315,448.90 = 539,936.42/x
  3. Step 3: Cross multiply
    953,456x = 1,315,448.90 × 539,936.42
  4. Step 4: Simplify right side
    953,456x = 710,258,769,758.94
  5. Step 5: Solve for x
    x = 710,258,769,758.94/953,456
  6. Step 6: Final answer
    x = 744,930.83

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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.