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Finding the Fourth Proportional to 319,895,335.60, 448,458,131.60 and 319,895,335.60

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Solution

The fourth proportional to 319,895,335.60, 448,458,131.60 and 319,895,335.60 is: 448,458,131.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,895,335.60 : 448,458,131.60 = 319,895,335.60 : x
  2. Step 2: Convert to fraction form
    319,895,335.60/448,458,131.60 = 319,895,335.60/x
  3. Step 3: Cross multiply
    319,895,335.60x = 448,458,131.60 × 319,895,335.60
  4. Step 4: Simplify right side
    319,895,335.60x = 143,459,664,510,730,976
  5. Step 5: Solve for x
    x = 143,459,664,510,730,976/319,895,335.60
  6. Step 6: Final answer
    x = 448,458,131.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.