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Finding the Fourth Proportional to 487,705.43, 673,263.62 and 366,892.82

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Solution

The fourth proportional to 487,705.43, 673,263.62 and 366,892.82 is: 506,485.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,705.43 : 673,263.62 = 366,892.82 : x
  2. Step 2: Convert to fraction form
    487,705.43/673,263.62 = 366,892.82/x
  3. Step 3: Cross multiply
    487,705.43x = 673,263.62 × 366,892.82
  4. Step 4: Simplify right side
    487,705.43x = 247,015,585,696.12
  5. Step 5: Solve for x
    x = 247,015,585,696.12/487,705.43
  6. Step 6: Final answer
    x = 506,485.20

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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.