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Finding the Fourth Proportional to 338,712,331.05, 508,068,496.58 and 338,712,331.05

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Solution

The fourth proportional to 338,712,331.05, 508,068,496.58 and 338,712,331.05 is: 508,068,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,712,331.05 : 508,068,496.58 = 338,712,331.05 : x
  2. Step 2: Convert to fraction form
    338,712,331.05/508,068,496.58 = 338,712,331.05/x
  3. Step 3: Cross multiply
    338,712,331.05x = 508,068,496.58 × 338,712,331.05
  4. Step 4: Simplify right side
    338,712,331.05x = 172,089,064,807,987,200
  5. Step 5: Solve for x
    x = 172,089,064,807,987,200/338,712,331.05
  6. Step 6: Final answer
    x = 508,068,496.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.