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Finding the Fourth Proportional to 541,908.40, 811,987.80 and 341,870.80

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Solution

The fourth proportional to 541,908.40, 811,987.80 and 341,870.80 is: 512,254.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,908.40 : 811,987.80 = 341,870.80 : x
  2. Step 2: Convert to fraction form
    541,908.40/811,987.80 = 341,870.80/x
  3. Step 3: Cross multiply
    541,908.40x = 811,987.80 × 341,870.80
  4. Step 4: Simplify right side
    541,908.40x = 277,594,918,776.24
  5. Step 5: Solve for x
    x = 277,594,918,776.24/541,908.40
  6. Step 6: Final answer
    x = 512,254.32

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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.