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Finding the Fourth Proportional to 253,226.80, 379,840.20 and 164,580.40

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Solution

The fourth proportional to 253,226.80, 379,840.20 and 164,580.40 is: 246,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,226.80 : 379,840.20 = 164,580.40 : x
  2. Step 2: Convert to fraction form
    253,226.80/379,840.20 = 164,580.40/x
  3. Step 3: Cross multiply
    253,226.80x = 379,840.20 × 164,580.40
  4. Step 4: Simplify right side
    253,226.80x = 62,514,252,052.08
  5. Step 5: Solve for x
    x = 62,514,252,052.08/253,226.80
  6. Step 6: Final answer
    x = 246,870.60

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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.