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Finding the Fourth Proportional to 410,784.38, 616,254.32 and 189,168.38

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Solution

The fourth proportional to 410,784.38, 616,254.32 and 189,168.38 is: 283,788.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,784.38 : 616,254.32 = 189,168.38 : x
  2. Step 2: Convert to fraction form
    410,784.38/616,254.32 = 189,168.38/x
  3. Step 3: Cross multiply
    410,784.38x = 616,254.32 × 189,168.38
  4. Step 4: Simplify right side
    410,784.38x = 116,575,831,382.40
  5. Step 5: Solve for x
    x = 116,575,831,382.40/410,784.38
  6. Step 6: Final answer
    x = 283,788.37

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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.