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Finding the Fourth Proportional to 660,080.64, 911,654.28 and 446,104.56

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Solution

The fourth proportional to 660,080.64, 911,654.28 and 446,104.56 is: 616,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,080.64 : 911,654.28 = 446,104.56 : x
  2. Step 2: Convert to fraction form
    660,080.64/911,654.28 = 446,104.56/x
  3. Step 3: Cross multiply
    660,080.64x = 911,654.28 × 446,104.56
  4. Step 4: Simplify right side
    660,080.64x = 406,693,131,451.52
  5. Step 5: Solve for x
    x = 406,693,131,451.52/660,080.64
  6. Step 6: Final answer
    x = 616,126.43

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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.