Home / 656,397.39-905,829.21-354,591.39

Finding the Fourth Proportional to 656,397.39, 905,829.21 and 354,591.39

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Solution

The fourth proportional to 656,397.39, 905,829.21 and 354,591.39 is: 489,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,397.39 : 905,829.21 = 354,591.39 : x
  2. Step 2: Convert to fraction form
    656,397.39/905,829.21 = 354,591.39/x
  3. Step 3: Cross multiply
    656,397.39x = 905,829.21 × 354,591.39
  4. Step 4: Simplify right side
    656,397.39x = 321,199,238,676.50
  5. Step 5: Solve for x
    x = 321,199,238,676.50/656,397.39
  6. Step 6: Final answer
    x = 489,336.56

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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.