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Finding the Fourth Proportional to 1,010,590, 1,394,616.90 and 557,881

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Solution

The fourth proportional to 1,010,590, 1,394,616.90 and 557,881 is: 769,877.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,590 : 1,394,616.90 = 557,881 : x
  2. Step 2: Convert to fraction form
    1,010,590/1,394,616.90 = 557,881/x
  3. Step 3: Cross multiply
    1,010,590x = 1,394,616.90 × 557,881
  4. Step 4: Simplify right side
    1,010,590x = 778,030,270,788.90
  5. Step 5: Solve for x
    x = 778,030,270,788.90/1,010,590
  6. Step 6: Final answer
    x = 769,877.27

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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.