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Finding the Fourth Proportional to 504,453,907.80, 756,680,861.70 and 424,100,028.60

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Solution

The fourth proportional to 504,453,907.80, 756,680,861.70 and 424,100,028.60 is: 636,150,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,453,907.80 : 756,680,861.70 = 424,100,028.60 : x
  2. Step 2: Convert to fraction form
    504,453,907.80/756,680,861.70 = 424,100,028.60/x
  3. Step 3: Cross multiply
    504,453,907.80x = 756,680,861.70 × 424,100,028.60
  4. Step 4: Simplify right side
    504,453,907.80x = 320,908,375,088,042,688
  5. Step 5: Solve for x
    x = 320,908,375,088,042,688/504,453,907.80
  6. Step 6: Final answer
    x = 636,150,042.90

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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.