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Finding the Fourth Proportional to 334,379.90, 461,355 and 198,300.71

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Solution

The fourth proportional to 334,379.90, 461,355 and 198,300.71 is: 273,602.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,379.90 : 461,355 = 198,300.71 : x
  2. Step 2: Convert to fraction form
    334,379.90/461,355 = 198,300.71/x
  3. Step 3: Cross multiply
    334,379.90x = 461,355 × 198,300.71
  4. Step 4: Simplify right side
    334,379.90x = 91,487,024,062.05
  5. Step 5: Solve for x
    x = 91,487,024,062.05/334,379.90
  6. Step 6: Final answer
    x = 273,602.04

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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.