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Finding the Fourth Proportional to 1,010,587, 1,394,612.76 and 557,878

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Solution

The fourth proportional to 1,010,587, 1,394,612.76 and 557,878 is: 769,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,587 : 1,394,612.76 = 557,878 : x
  2. Step 2: Convert to fraction form
    1,010,587/1,394,612.76 = 557,878/x
  3. Step 3: Cross multiply
    1,010,587x = 1,394,612.76 × 557,878
  4. Step 4: Simplify right side
    1,010,587x = 778,023,777,323.28
  5. Step 5: Solve for x
    x = 778,023,777,323.28/1,010,587
  6. Step 6: Final answer
    x = 769,873.13

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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.