Home / 689,243.13-951,100.41-383,320.11

Finding the Fourth Proportional to 689,243.13, 951,100.41 and 383,320.11

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Solution

The fourth proportional to 689,243.13, 951,100.41 and 383,320.11 is: 528,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,243.13 : 951,100.41 = 383,320.11 : x
  2. Step 2: Convert to fraction form
    689,243.13/951,100.41 = 383,320.11/x
  3. Step 3: Cross multiply
    689,243.13x = 951,100.41 × 383,320.11
  4. Step 4: Simplify right side
    689,243.13x = 364,575,913,782.25
  5. Step 5: Solve for x
    x = 364,575,913,782.25/689,243.13
  6. Step 6: Final answer
    x = 528,951.10

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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.