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Finding the Fourth Proportional to 1,411,844.78, 1,948,420.54 and 800,116.58

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Solution

The fourth proportional to 1,411,844.78, 1,948,420.54 and 800,116.58 is: 1,104,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,844.78 : 1,948,420.54 = 800,116.58 : x
  2. Step 2: Convert to fraction form
    1,411,844.78/1,948,420.54 = 800,116.58/x
  3. Step 3: Cross multiply
    1,411,844.78x = 1,948,420.54 × 800,116.58
  4. Step 4: Simplify right side
    1,411,844.78x = 1,558,963,578,866.55
  5. Step 5: Solve for x
    x = 1,558,963,578,866.55/1,411,844.78
  6. Step 6: Final answer
    x = 1,104,203.24

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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.