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Finding the Fourth Proportional to 279,762,404.10, 419,643,606.15 and 279,762,404.10

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Solution

The fourth proportional to 279,762,404.10, 419,643,606.15 and 279,762,404.10 is: 419,643,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,762,404.10 : 419,643,606.15 = 279,762,404.10 : x
  2. Step 2: Convert to fraction form
    279,762,404.10/419,643,606.15 = 279,762,404.10/x
  3. Step 3: Cross multiply
    279,762,404.10x = 419,643,606.15 × 279,762,404.10
  4. Step 4: Simplify right side
    279,762,404.10x = 117,400,504,121,717,552
  5. Step 5: Solve for x
    x = 117,400,504,121,717,552/279,762,404.10
  6. Step 6: Final answer
    x = 419,643,606.15

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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.