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Finding the Fourth Proportional to 363,960.10, 545,940.15 and 127,278.10

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Solution

The fourth proportional to 363,960.10, 545,940.15 and 127,278.10 is: 190,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,960.10 : 545,940.15 = 127,278.10 : x
  2. Step 2: Convert to fraction form
    363,960.10/545,940.15 = 127,278.10/x
  3. Step 3: Cross multiply
    363,960.10x = 545,940.15 × 127,278.10
  4. Step 4: Simplify right side
    363,960.10x = 69,486,225,005.72
  5. Step 5: Solve for x
    x = 69,486,225,005.72/363,960.10
  6. Step 6: Final answer
    x = 190,917.15

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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.