Home / 656,201.52-905,557.90-354,395.52

Finding the Fourth Proportional to 656,201.52, 905,557.90 and 354,395.52

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Solution

The fourth proportional to 656,201.52, 905,557.90 and 354,395.52 is: 489,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,201.52 : 905,557.90 = 354,395.52 : x
  2. Step 2: Convert to fraction form
    656,201.52/905,557.90 = 354,395.52/x
  3. Step 3: Cross multiply
    656,201.52x = 905,557.90 × 354,395.52
  4. Step 4: Simplify right side
    656,201.52x = 320,925,662,860.61
  5. Step 5: Solve for x
    x = 320,925,662,860.61/656,201.52
  6. Step 6: Final answer
    x = 489,065.71

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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.