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Finding the Fourth Proportional to 993,894.10, 1,490,841.15 and 886,066.90

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Solution

The fourth proportional to 993,894.10, 1,490,841.15 and 886,066.90 is: 1,329,100.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,894.10 : 1,490,841.15 = 886,066.90 : x
  2. Step 2: Convert to fraction form
    993,894.10/1,490,841.15 = 886,066.90/x
  3. Step 3: Cross multiply
    993,894.10x = 1,490,841.15 × 886,066.90
  4. Step 4: Simplify right side
    993,894.10x = 1,320,984,996,172.94
  5. Step 5: Solve for x
    x = 1,320,984,996,172.94/993,894.10
  6. Step 6: Final answer
    x = 1,329,100.35

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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.