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Finding the Fourth Proportional to 300,453,908.40, 450,680,862.60 and 222,969,810.60

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Solution

The fourth proportional to 300,453,908.40, 450,680,862.60 and 222,969,810.60 is: 334,454,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,453,908.40 : 450,680,862.60 = 222,969,810.60 : x
  2. Step 2: Convert to fraction form
    300,453,908.40/450,680,862.60 = 222,969,810.60/x
  3. Step 3: Cross multiply
    300,453,908.40x = 450,680,862.60 × 222,969,810.60
  4. Step 4: Simplify right side
    300,453,908.40x = 100,488,226,574,966,624
  5. Step 5: Solve for x
    x = 100,488,226,574,966,624/300,453,908.40
  6. Step 6: Final answer
    x = 334,454,715.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.