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Finding the Fourth Proportional to 619,899,484.74, 855,461,212.18 and 341,441,008.31

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Solution

The fourth proportional to 619,899,484.74, 855,461,212.18 and 341,441,008.31 is: 471,188,549.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,899,484.74 : 855,461,212.18 = 341,441,008.31 : x
  2. Step 2: Convert to fraction form
    619,899,484.74/855,461,212.18 = 341,441,008.31/x
  3. Step 3: Cross multiply
    619,899,484.74x = 855,461,212.18 × 341,441,008.31
  4. Step 4: Simplify right side
    619,899,484.74x = 292,089,538,856,834,048
  5. Step 5: Solve for x
    x = 292,089,538,856,834,048/619,899,484.74
  6. Step 6: Final answer
    x = 471,188,549.19

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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.