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Finding the Fourth Proportional to 688,540.58, 949,908.56 and 416,135.56

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Solution

The fourth proportional to 688,540.58, 949,908.56 and 416,135.56 is: 574,099.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,540.58 : 949,908.56 = 416,135.56 : x
  2. Step 2: Convert to fraction form
    688,540.58/949,908.56 = 416,135.56/x
  3. Step 3: Cross multiply
    688,540.58x = 949,908.56 × 416,135.56
  4. Step 4: Simplify right side
    688,540.58x = 395,290,730,564.39
  5. Step 5: Solve for x
    x = 395,290,730,564.39/688,540.58
  6. Step 6: Final answer
    x = 574,099.40

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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.