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Finding the Fourth Proportional to 341,627.60, 512,009.40 and 130,984.40

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Solution

The fourth proportional to 341,627.60, 512,009.40 and 130,984.40 is: 196,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,627.60 : 512,009.40 = 130,984.40 : x
  2. Step 2: Convert to fraction form
    341,627.60/512,009.40 = 130,984.40/x
  3. Step 3: Cross multiply
    341,627.60x = 512,009.40 × 130,984.40
  4. Step 4: Simplify right side
    341,627.60x = 67,065,244,053.36
  5. Step 5: Solve for x
    x = 67,065,244,053.36/341,627.60
  6. Step 6: Final answer
    x = 196,310.97

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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.