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Finding the Fourth Proportional to 330,046.92, 455,452.98 and 186,803.89

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Solution

The fourth proportional to 330,046.92, 455,452.98 and 186,803.89 is: 257,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,046.92 : 455,452.98 = 186,803.89 : x
  2. Step 2: Convert to fraction form
    330,046.92/455,452.98 = 186,803.89/x
  3. Step 3: Cross multiply
    330,046.92x = 455,452.98 × 186,803.89
  4. Step 4: Simplify right side
    330,046.92x = 85,080,386,536.95
  5. Step 5: Solve for x
    x = 85,080,386,536.95/330,046.92
  6. Step 6: Final answer
    x = 257,782.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.