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Finding the Fourth Proportional to 330,063.73, 455,454.70 and 186,798.84

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Solution

The fourth proportional to 330,063.73, 455,454.70 and 186,798.84 is: 257,763.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,063.73 : 455,454.70 = 186,798.84 : x
  2. Step 2: Convert to fraction form
    330,063.73/455,454.70 = 186,798.84/x
  3. Step 3: Cross multiply
    330,063.73x = 455,454.70 × 186,798.84
  4. Step 4: Simplify right side
    330,063.73x = 85,078,409,632.55
  5. Step 5: Solve for x
    x = 85,078,409,632.55/330,063.73
  6. Step 6: Final answer
    x = 257,763.58

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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.