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Finding the Fourth Proportional to 621,637.92, 857,863.60 and 367,114.56

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Solution

The fourth proportional to 621,637.92, 857,863.60 and 367,114.56 is: 506,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,637.92 : 857,863.60 = 367,114.56 : x
  2. Step 2: Convert to fraction form
    621,637.92/857,863.60 = 367,114.56/x
  3. Step 3: Cross multiply
    621,637.92x = 857,863.60 × 367,114.56
  4. Step 4: Simplify right side
    621,637.92x = 314,934,218,054.02
  5. Step 5: Solve for x
    x = 314,934,218,054.02/621,637.92
  6. Step 6: Final answer
    x = 506,620.02

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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.