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Finding the Fourth Proportional to 556,997,675.92, 835,524,265.70 and 211,978,043.08

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Solution

The fourth proportional to 556,997,675.92, 835,524,265.70 and 211,978,043.08 is: 317,977,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,997,675.92 : 835,524,265.70 = 211,978,043.08 : x
  2. Step 2: Convert to fraction form
    556,997,675.92/835,524,265.70 = 211,978,043.08/x
  3. Step 3: Cross multiply
    556,997,675.92x = 835,524,265.70 × 211,978,043.08
  4. Step 4: Simplify right side
    556,997,675.92x = 177,112,798,783,702,464
  5. Step 5: Solve for x
    x = 177,112,798,783,702,464/556,997,675.92
  6. Step 6: Final answer
    x = 317,977,626.20

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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.