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Finding the Fourth Proportional to 1,338,557.07, 1,845,424.65 and 1,063,832.28

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Solution

The fourth proportional to 1,338,557.07, 1,845,424.65 and 1,063,832.28 is: 1,466,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,557.07 : 1,845,424.65 = 1,063,832.28 : x
  2. Step 2: Convert to fraction form
    1,338,557.07/1,845,424.65 = 1,063,832.28/x
  3. Step 3: Cross multiply
    1,338,557.07x = 1,845,424.65 × 1,063,832.28
  4. Step 4: Simplify right side
    1,338,557.07x = 1,963,222,308,052.05
  5. Step 5: Solve for x
    x = 1,963,222,308,052.05/1,338,557.07
  6. Step 6: Final answer
    x = 1,466,670.61

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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.