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Finding the Fourth Proportional to 341,470.20, 512,051.70 and 131,038.20

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Solution

The fourth proportional to 341,470.20, 512,051.70 and 131,038.20 is: 196,498.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,470.20 : 512,051.70 = 131,038.20 : x
  2. Step 2: Convert to fraction form
    341,470.20/512,051.70 = 131,038.20/x
  3. Step 3: Cross multiply
    341,470.20x = 512,051.70 × 131,038.20
  4. Step 4: Simplify right side
    341,470.20x = 67,098,333,074.94
  5. Step 5: Solve for x
    x = 67,098,333,074.94/341,470.20
  6. Step 6: Final answer
    x = 196,498.36

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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.