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Finding the Fourth Proportional to 1,372,187, 1,893,618.06 and 835,643

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Solution

The fourth proportional to 1,372,187, 1,893,618.06 and 835,643 is: 1,153,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,187 : 1,893,618.06 = 835,643 : x
  2. Step 2: Convert to fraction form
    1,372,187/1,893,618.06 = 835,643/x
  3. Step 3: Cross multiply
    1,372,187x = 1,893,618.06 × 835,643
  4. Step 4: Simplify right side
    1,372,187x = 1,582,388,676,512.58
  5. Step 5: Solve for x
    x = 1,582,388,676,512.58/1,372,187
  6. Step 6: Final answer
    x = 1,153,187.34

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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.