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Finding the Fourth Proportional to 314,929,134.80, 439,880,422 and 314,929,134.80

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Solution

The fourth proportional to 314,929,134.80, 439,880,422 and 314,929,134.80 is: 439,880,422

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,134.80 : 439,880,422 = 314,929,134.80 : x
  2. Step 2: Convert to fraction form
    314,929,134.80/439,880,422 = 314,929,134.80/x
  3. Step 3: Cross multiply
    314,929,134.80x = 439,880,422 × 314,929,134.80
  4. Step 4: Simplify right side
    314,929,134.80x = 138,531,160,715,918,896
  5. Step 5: Solve for x
    x = 138,531,160,715,918,896/314,929,134.80
  6. Step 6: Final answer
    x = 439,880,422

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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.