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Finding the Fourth Proportional to 541,805.30, 812,416.35 and 225,905.30

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Solution

The fourth proportional to 541,805.30, 812,416.35 and 225,905.30 is: 338,736.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,805.30 : 812,416.35 = 225,905.30 : x
  2. Step 2: Convert to fraction form
    541,805.30/812,416.35 = 225,905.30/x
  3. Step 3: Cross multiply
    541,805.30x = 812,416.35 × 225,905.30
  4. Step 4: Simplify right side
    541,805.30x = 183,529,159,271.66
  5. Step 5: Solve for x
    x = 183,529,159,271.66/541,805.30
  6. Step 6: Final answer
    x = 338,736.37

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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.