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Finding the Fourth Proportional to 662,661,019.20, 993,991,528.80 and 226,454,246.40

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Solution

The fourth proportional to 662,661,019.20, 993,991,528.80 and 226,454,246.40 is: 339,681,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,661,019.20 : 993,991,528.80 = 226,454,246.40 : x
  2. Step 2: Convert to fraction form
    662,661,019.20/993,991,528.80 = 226,454,246.40/x
  3. Step 3: Cross multiply
    662,661,019.20x = 993,991,528.80 × 226,454,246.40
  4. Step 4: Simplify right side
    662,661,019.20x = 225,093,602,582,387,904
  5. Step 5: Solve for x
    x = 225,093,602,582,387,904/662,661,019.20
  6. Step 6: Final answer
    x = 339,681,369.60

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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.