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Finding the Fourth Proportional to 423,994.31, 585,084.62 and 242,707.67

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Solution

The fourth proportional to 423,994.31, 585,084.62 and 242,707.67 is: 334,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,994.31 : 585,084.62 = 242,707.67 : x
  2. Step 2: Convert to fraction form
    423,994.31/585,084.62 = 242,707.67/x
  3. Step 3: Cross multiply
    423,994.31x = 585,084.62 × 242,707.67
  4. Step 4: Simplify right side
    423,994.31x = 142,004,520,734.07
  5. Step 5: Solve for x
    x = 142,004,520,734.07/423,994.31
  6. Step 6: Final answer
    x = 334,920.82

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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.