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Finding the Fourth Proportional to 663,315,000.40, 994,972,500.60 and 469,445,323.60

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Solution

The fourth proportional to 663,315,000.40, 994,972,500.60 and 469,445,323.60 is: 704,167,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,315,000.40 : 994,972,500.60 = 469,445,323.60 : x
  2. Step 2: Convert to fraction form
    663,315,000.40/994,972,500.60 = 469,445,323.60/x
  3. Step 3: Cross multiply
    663,315,000.40x = 994,972,500.60 × 469,445,323.60
  4. Step 4: Simplify right side
    663,315,000.40x = 467,085,187,517,268,224
  5. Step 5: Solve for x
    x = 467,085,187,517,268,224/663,315,000.40
  6. Step 6: Final answer
    x = 704,167,985.40

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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.