Home / 935,699.43-1,291,265.31-505,979.55

Finding the Fourth Proportional to 935,699.43, 1,291,265.31 and 505,979.55

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Solution

The fourth proportional to 935,699.43, 1,291,265.31 and 505,979.55 is: 698,251.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,699.43 : 1,291,265.31 = 505,979.55 : x
  2. Step 2: Convert to fraction form
    935,699.43/1,291,265.31 = 505,979.55/x
  3. Step 3: Cross multiply
    935,699.43x = 1,291,265.31 × 505,979.55
  4. Step 4: Simplify right side
    935,699.43x = 653,353,840,484.41
  5. Step 5: Solve for x
    x = 653,353,840,484.41/935,699.43
  6. Step 6: Final answer
    x = 698,251.83

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1.5x scale

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.