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Finding the Fourth Proportional to 662,189,810.64, 993,251,697.96 and 247,636,154.64

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Solution

The fourth proportional to 662,189,810.64, 993,251,697.96 and 247,636,154.64 is: 371,441,884.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,189,810.64 : 993,251,697.96 = 247,636,154.64 : x
  2. Step 2: Convert to fraction form
    662,189,810.64/993,251,697.96 = 247,636,154.64/x
  3. Step 3: Cross multiply
    662,189,810.64x = 993,251,697.96 × 247,636,154.64
  4. Step 4: Simplify right side
    662,189,810.64x = 245,965,031,072,465,120
  5. Step 5: Solve for x
    x = 245,965,031,072,465,120/662,189,810.64
  6. Step 6: Final answer
    x = 371,441,884.37

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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.