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Finding the Fourth Proportional to 662,578.20, 994,904.10 and 382,642.20

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Solution

The fourth proportional to 662,578.20, 994,904.10 and 382,642.20 is: 574,562.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,578.20 : 994,904.10 = 382,642.20 : x
  2. Step 2: Convert to fraction form
    662,578.20/994,904.10 = 382,642.20/x
  3. Step 3: Cross multiply
    662,578.20x = 994,904.10 × 382,642.20
  4. Step 4: Simplify right side
    662,578.20x = 380,692,293,613.02
  5. Step 5: Solve for x
    x = 380,692,293,613.02/662,578.20
  6. Step 6: Final answer
    x = 574,562.06

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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.