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Finding the Fourth Proportional to 1,411,692, 1,948,134.96 and 775,788

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Solution

The fourth proportional to 1,411,692, 1,948,134.96 and 775,788 is: 1,070,587.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,692 : 1,948,134.96 = 775,788 : x
  2. Step 2: Convert to fraction form
    1,411,692/1,948,134.96 = 775,788/x
  3. Step 3: Cross multiply
    1,411,692x = 1,948,134.96 × 775,788
  4. Step 4: Simplify right side
    1,411,692x = 1,511,339,724,348.48
  5. Step 5: Solve for x
    x = 1,511,339,724,348.48/1,411,692
  6. Step 6: Final answer
    x = 1,070,587.44

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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.