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Finding the Fourth Proportional to 613,339.71, 920,157.80 and 192,615.59

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Solution

The fourth proportional to 613,339.71, 920,157.80 and 192,615.59 is: 288,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,339.71 : 920,157.80 = 192,615.59 : x
  2. Step 2: Convert to fraction form
    613,339.71/920,157.80 = 192,615.59/x
  3. Step 3: Cross multiply
    613,339.71x = 920,157.80 × 192,615.59
  4. Step 4: Simplify right side
    613,339.71x = 177,236,731,976.24
  5. Step 5: Solve for x
    x = 177,236,731,976.24/613,339.71
  6. Step 6: Final answer
    x = 288,969.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.