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Finding the Fourth Proportional to 829,979,375.60, 1,244,969,063.40 and 255,550,703.60

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Solution

The fourth proportional to 829,979,375.60, 1,244,969,063.40 and 255,550,703.60 is: 383,326,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,979,375.60 : 1,244,969,063.40 = 255,550,703.60 : x
  2. Step 2: Convert to fraction form
    829,979,375.60/1,244,969,063.40 = 255,550,703.60/x
  3. Step 3: Cross multiply
    829,979,375.60x = 1,244,969,063.40 × 255,550,703.60
  4. Step 4: Simplify right side
    829,979,375.60x = 318,152,720,112,103,040
  5. Step 5: Solve for x
    x = 318,152,720,112,103,040/829,979,375.60
  6. Step 6: Final answer
    x = 383,326,055.40

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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.