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Finding the Fourth Proportional to 552,954,676.80, 829,426,334.40 and 319,636,930.80

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Solution

The fourth proportional to 552,954,676.80, 829,426,334.40 and 319,636,930.80 is: 479,452,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,954,676.80 : 829,426,334.40 = 319,636,930.80 : x
  2. Step 2: Convert to fraction form
    552,954,676.80/829,426,334.40 = 319,636,930.80/x
  3. Step 3: Cross multiply
    552,954,676.80x = 829,426,334.40 × 319,636,930.80
  4. Step 4: Simplify right side
    552,954,676.80x = 265,115,287,852,310,464
  5. Step 5: Solve for x
    x = 265,115,287,852,310,464/552,954,676.80
  6. Step 6: Final answer
    x = 479,452,112.40

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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.