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Finding the Fourth Proportional to 606,312,055.20, 909,468,082.80 and 330,813,040.80

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Solution

The fourth proportional to 606,312,055.20, 909,468,082.80 and 330,813,040.80 is: 496,219,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,312,055.20 : 909,468,082.80 = 330,813,040.80 : x
  2. Step 2: Convert to fraction form
    606,312,055.20/909,468,082.80 = 330,813,040.80/x
  3. Step 3: Cross multiply
    606,312,055.20x = 909,468,082.80 × 330,813,040.80
  4. Step 4: Simplify right side
    606,312,055.20x = 300,863,901,981,614,144
  5. Step 5: Solve for x
    x = 300,863,901,981,614,144/606,312,055.20
  6. Step 6: Final answer
    x = 496,219,561.20

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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.