Home / 660,836.20-911,960.38-374,350.16

Finding the Fourth Proportional to 660,836.20, 911,960.38 and 374,350.16

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Solution

The fourth proportional to 660,836.20, 911,960.38 and 374,350.16 is: 516,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,836.20 : 911,960.38 = 374,350.16 : x
  2. Step 2: Convert to fraction form
    660,836.20/911,960.38 = 374,350.16/x
  3. Step 3: Cross multiply
    660,836.20x = 911,960.38 × 374,350.16
  4. Step 4: Simplify right side
    660,836.20x = 341,392,514,166.66
  5. Step 5: Solve for x
    x = 341,392,514,166.66/660,836.20
  6. Step 6: Final answer
    x = 516,606.86

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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.