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Finding the Fourth Proportional to 622,889,670.40, 934,334,505.60 and 162,874,340.80

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Solution

The fourth proportional to 622,889,670.40, 934,334,505.60 and 162,874,340.80 is: 244,311,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,889,670.40 : 934,334,505.60 = 162,874,340.80 : x
  2. Step 2: Convert to fraction form
    622,889,670.40/934,334,505.60 = 162,874,340.80/x
  3. Step 3: Cross multiply
    622,889,670.40x = 934,334,505.60 × 162,874,340.80
  4. Step 4: Simplify right side
    622,889,670.40x = 152,179,116,686,293,920
  5. Step 5: Solve for x
    x = 152,179,116,686,293,920/622,889,670.40
  6. Step 6: Final answer
    x = 244,311,511.20

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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.