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Finding the Fourth Proportional to 1,999,736.16, 2,998,671.12 and 1,158,528.48

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Solution

The fourth proportional to 1,999,736.16, 2,998,671.12 and 1,158,528.48 is: 1,737,252.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,736.16 : 2,998,671.12 = 1,158,528.48 : x
  2. Step 2: Convert to fraction form
    1,999,736.16/2,998,671.12 = 1,158,528.48/x
  3. Step 3: Cross multiply
    1,999,736.16x = 2,998,671.12 × 1,158,528.48
  4. Step 4: Simplify right side
    1,999,736.16x = 3,474,045,894,673.50
  5. Step 5: Solve for x
    x = 3,474,045,894,673.50/1,999,736.16
  6. Step 6: Final answer
    x = 1,737,252.13

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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.