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Finding the Fourth Proportional to 435,718.68, 601,279.80 and 242,121.42

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Solution

The fourth proportional to 435,718.68, 601,279.80 and 242,121.42 is: 334,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,718.68 : 601,279.80 = 242,121.42 : x
  2. Step 2: Convert to fraction form
    435,718.68/601,279.80 = 242,121.42/x
  3. Step 3: Cross multiply
    435,718.68x = 601,279.80 × 242,121.42
  4. Step 4: Simplify right side
    435,718.68x = 145,582,718,993.32
  5. Step 5: Solve for x
    x = 145,582,718,993.32/435,718.68
  6. Step 6: Final answer
    x = 334,120.90

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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.