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Finding the Fourth Proportional to 1,139,940, 1,573,745.04 and 853,356.96

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Solution

The fourth proportional to 1,139,940, 1,573,745.04 and 853,356.96 is: 1,178,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,940 : 1,573,745.04 = 853,356.96 : x
  2. Step 2: Convert to fraction form
    1,139,940/1,573,745.04 = 853,356.96/x
  3. Step 3: Cross multiply
    1,139,940x = 1,573,745.04 × 853,356.96
  4. Step 4: Simplify right side
    1,139,940x = 1,342,966,283,149.48
  5. Step 5: Solve for x
    x = 1,342,966,283,149.48/1,139,940
  6. Step 6: Final answer
    x = 1,178,102.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.