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Finding the Fourth Proportional to 541,805.80, 812,417.10 and 225,905.80

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Solution

The fourth proportional to 541,805.80, 812,417.10 and 225,905.80 is: 338,737.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,805.80 : 812,417.10 = 225,905.80 : x
  2. Step 2: Convert to fraction form
    541,805.80/812,417.10 = 225,905.80/x
  3. Step 3: Cross multiply
    541,805.80x = 812,417.10 × 225,905.80
  4. Step 4: Simplify right side
    541,805.80x = 183,529,734,909.18
  5. Step 5: Solve for x
    x = 183,529,734,909.18/541,805.80
  6. Step 6: Final answer
    x = 338,737.12

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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.