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Finding the Fourth Proportional to 427,693.80, 590,199.30 and 236,689.32

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Solution

The fourth proportional to 427,693.80, 590,199.30 and 236,689.32 is: 326,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,693.80 : 590,199.30 = 236,689.32 : x
  2. Step 2: Convert to fraction form
    427,693.80/590,199.30 = 236,689.32/x
  3. Step 3: Cross multiply
    427,693.80x = 590,199.30 × 236,689.32
  4. Step 4: Simplify right side
    427,693.80x = 139,693,870,981.48
  5. Step 5: Solve for x
    x = 139,693,870,981.48/427,693.80
  6. Step 6: Final answer
    x = 326,621.22

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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.