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Finding the Fourth Proportional to 340,001.10, 510,127.20 and 140,338.80

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Solution

The fourth proportional to 340,001.10, 510,127.20 and 140,338.80 is: 210,560.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,001.10 : 510,127.20 = 140,338.80 : x
  2. Step 2: Convert to fraction form
    340,001.10/510,127.20 = 140,338.80/x
  3. Step 3: Cross multiply
    340,001.10x = 510,127.20 × 140,338.80
  4. Step 4: Simplify right side
    340,001.10x = 71,590,639,095.36
  5. Step 5: Solve for x
    x = 71,590,639,095.36/340,001.10
  6. Step 6: Final answer
    x = 210,560.02

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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.