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Finding the Fourth Proportional to 996,904.55, 1,495,356.83 and 919,922.15

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Solution

The fourth proportional to 996,904.55, 1,495,356.83 and 919,922.15 is: 1,379,883.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,904.55 : 1,495,356.83 = 919,922.15 : x
  2. Step 2: Convert to fraction form
    996,904.55/1,495,356.83 = 919,922.15/x
  3. Step 3: Cross multiply
    996,904.55x = 1,495,356.83 × 919,922.15
  4. Step 4: Simplify right side
    996,904.55x = 1,375,611,870,070.78
  5. Step 5: Solve for x
    x = 1,375,611,870,070.78/996,904.55
  6. Step 6: Final answer
    x = 1,379,883.23

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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.