Home / 519,775,003.59-779,137,873.47-325,822,621.28

Finding the Fourth Proportional to 519,775,003.59, 779,137,873.47 and 325,822,621.28

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Solution

The fourth proportional to 519,775,003.59, 779,137,873.47 and 325,822,621.28 is: 488,405,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,775,003.59 : 779,137,873.47 = 325,822,621.28 : x
  2. Step 2: Convert to fraction form
    519,775,003.59/779,137,873.47 = 325,822,621.28/x
  3. Step 3: Cross multiply
    519,775,003.59x = 779,137,873.47 × 325,822,621.28
  4. Step 4: Simplify right side
    519,775,003.59x = 253,860,744,268,624,672
  5. Step 5: Solve for x
    x = 253,860,744,268,624,672/519,775,003.59
  6. Step 6: Final answer
    x = 488,405,064.72

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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.