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Finding the Fourth Proportional to 993,887.10, 1,490,830.65 and 886,059.90

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Solution

The fourth proportional to 993,887.10, 1,490,830.65 and 886,059.90 is: 1,329,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,887.10 : 1,490,830.65 = 886,059.90 : x
  2. Step 2: Convert to fraction form
    993,887.10/1,490,830.65 = 886,059.90/x
  3. Step 3: Cross multiply
    993,887.10x = 1,490,830.65 × 886,059.90
  4. Step 4: Simplify right side
    993,887.10x = 1,320,965,256,655.94
  5. Step 5: Solve for x
    x = 1,320,965,256,655.94/993,887.10
  6. Step 6: Final answer
    x = 1,329,089.85

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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.