Home / 852,308,939.20-1,278,463,408.80-576,809,924.80

Finding the Fourth Proportional to 852,308,939.20, 1,278,463,408.80 and 576,809,924.80

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Solution

The fourth proportional to 852,308,939.20, 1,278,463,408.80 and 576,809,924.80 is: 865,214,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,308,939.20 : 1,278,463,408.80 = 576,809,924.80 : x
  2. Step 2: Convert to fraction form
    852,308,939.20/1,278,463,408.80 = 576,809,924.80/x
  3. Step 3: Cross multiply
    852,308,939.20x = 1,278,463,408.80 × 576,809,924.80
  4. Step 4: Simplify right side
    852,308,939.20x = 737,430,382,689,479,552
  5. Step 5: Solve for x
    x = 737,430,382,689,479,552/852,308,939.20
  6. Step 6: Final answer
    x = 865,214,887.20

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1.5x scale

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.