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Finding the Fourth Proportional to 541,209.40, 811,814.10 and 245,721.40

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Solution

The fourth proportional to 541,209.40, 811,814.10 and 245,721.40 is: 368,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,209.40 : 811,814.10 = 245,721.40 : x
  2. Step 2: Convert to fraction form
    541,209.40/811,814.10 = 245,721.40/x
  3. Step 3: Cross multiply
    541,209.40x = 811,814.10 × 245,721.40
  4. Step 4: Simplify right side
    541,209.40x = 199,480,097,191.74
  5. Step 5: Solve for x
    x = 199,480,097,191.74/541,209.40
  6. Step 6: Final answer
    x = 368,582.10

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Similar ratio
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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.