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Finding the Fourth Proportional to 627,612.12, 866,101.48 and 341,133.75

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Solution

The fourth proportional to 627,612.12, 866,101.48 and 341,133.75 is: 470,762.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,612.12 : 866,101.48 = 341,133.75 : x
  2. Step 2: Convert to fraction form
    627,612.12/866,101.48 = 341,133.75/x
  3. Step 3: Cross multiply
    627,612.12x = 866,101.48 × 341,133.75
  4. Step 4: Simplify right side
    627,612.12x = 295,456,444,900.12
  5. Step 5: Solve for x
    x = 295,456,444,900.12/627,612.12
  6. Step 6: Final answer
    x = 470,762.81

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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.