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Finding the Fourth Proportional to 414,917.80, 620,994.30 and 365,151.40

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Solution

The fourth proportional to 414,917.80, 620,994.30 and 365,151.40 is: 546,510.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,917.80 : 620,994.30 = 365,151.40 : x
  2. Step 2: Convert to fraction form
    414,917.80/620,994.30 = 365,151.40/x
  3. Step 3: Cross multiply
    414,917.80x = 620,994.30 × 365,151.40
  4. Step 4: Simplify right side
    414,917.80x = 226,756,938,037.02
  5. Step 5: Solve for x
    x = 226,756,938,037.02/414,917.80
  6. Step 6: Final answer
    x = 546,510.51

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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.