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Finding the Fourth Proportional to 991,784,250.14, 1,487,891,608.81 and 301,673,567.97

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Solution

The fourth proportional to 991,784,250.14, 1,487,891,608.81 and 301,673,567.97 is: 452,575,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,784,250.14 : 1,487,891,608.81 = 301,673,567.97 : x
  2. Step 2: Convert to fraction form
    991,784,250.14/1,487,891,608.81 = 301,673,567.97/x
  3. Step 3: Cross multiply
    991,784,250.14x = 1,487,891,608.81 × 301,673,567.97
  4. Step 4: Simplify right side
    991,784,250.14x = 448,857,570,381,582,016
  5. Step 5: Solve for x
    x = 448,857,570,381,582,016/991,784,250.14
  6. Step 6: Final answer
    x = 452,575,820.11

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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.