Home / 689,243.14-951,100.40-383,320.11

Finding the Fourth Proportional to 689,243.14, 951,100.40 and 383,320.11

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Solution

The fourth proportional to 689,243.14, 951,100.40 and 383,320.11 is: 528,951.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,243.14 : 951,100.40 = 383,320.11 : x
  2. Step 2: Convert to fraction form
    689,243.14/951,100.40 = 383,320.11/x
  3. Step 3: Cross multiply
    689,243.14x = 951,100.40 × 383,320.11
  4. Step 4: Simplify right side
    689,243.14x = 364,575,910,907.34
  5. Step 5: Solve for x
    x = 364,575,910,907.34/689,243.14
  6. Step 6: Final answer
    x = 528,951.09

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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.