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Finding the Fourth Proportional to 413,549.60, 620,410.80 and 133,095.20

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Solution

The fourth proportional to 413,549.60, 620,410.80 and 133,095.20 is: 199,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,549.60 : 620,410.80 = 133,095.20 : x
  2. Step 2: Convert to fraction form
    413,549.60/620,410.80 = 133,095.20/x
  3. Step 3: Cross multiply
    413,549.60x = 620,410.80 × 133,095.20
  4. Step 4: Simplify right side
    413,549.60x = 82,573,699,508.16
  5. Step 5: Solve for x
    x = 82,573,699,508.16/413,549.60
  6. Step 6: Final answer
    x = 199,670.61

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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.