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Finding the Fourth Proportional to 505,426.76, 758,505.95 and 197,724.13

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Solution

The fourth proportional to 505,426.76, 758,505.95 and 197,724.13 is: 296,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,426.76 : 758,505.95 = 197,724.13 : x
  2. Step 2: Convert to fraction form
    505,426.76/758,505.95 = 197,724.13/x
  3. Step 3: Cross multiply
    505,426.76x = 758,505.95 × 197,724.13
  4. Step 4: Simplify right side
    505,426.76x = 149,974,929,063.57
  5. Step 5: Solve for x
    x = 149,974,929,063.57/505,426.76
  6. Step 6: Final answer
    x = 296,729.30

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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.