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Finding the Fourth Proportional to 541,264.30, 811,896.45 and 208,840.30

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Solution

The fourth proportional to 541,264.30, 811,896.45 and 208,840.30 is: 313,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,264.30 : 811,896.45 = 208,840.30 : x
  2. Step 2: Convert to fraction form
    541,264.30/811,896.45 = 208,840.30/x
  3. Step 3: Cross multiply
    541,264.30x = 811,896.45 × 208,840.30
  4. Step 4: Simplify right side
    541,264.30x = 169,556,698,186.94
  5. Step 5: Solve for x
    x = 169,556,698,186.94/541,264.30
  6. Step 6: Final answer
    x = 313,260.45

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Double scale
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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.