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Finding the Fourth Proportional to 980,929,672.16, 1,353,673,065.64 and 534,891,907.90

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Solution

The fourth proportional to 980,929,672.16, 1,353,673,065.64 and 534,891,907.90 is: 738,145,444.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,929,672.16 : 1,353,673,065.64 = 534,891,907.90 : x
  2. Step 2: Convert to fraction form
    980,929,672.16/1,353,673,065.64 = 534,891,907.90/x
  3. Step 3: Cross multiply
    980,929,672.16x = 1,353,673,065.64 × 534,891,907.90
  4. Step 4: Simplify right side
    980,929,672.16x = 724,068,768,753,021,568
  5. Step 5: Solve for x
    x = 724,068,768,753,021,568/980,929,672.16
  6. Step 6: Final answer
    x = 738,145,444.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.