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Finding the Fourth Proportional to 621,690.96, 857,965.04 and 367,036.68

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Solution

The fourth proportional to 621,690.96, 857,965.04 and 367,036.68 is: 506,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,690.96 : 857,965.04 = 367,036.68 : x
  2. Step 2: Convert to fraction form
    621,690.96/857,965.04 = 367,036.68/x
  3. Step 3: Cross multiply
    621,690.96x = 857,965.04 × 367,036.68
  4. Step 4: Simplify right side
    621,690.96x = 314,904,639,837.67
  5. Step 5: Solve for x
    x = 314,904,639,837.67/621,690.96
  6. Step 6: Final answer
    x = 506,529.22

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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.