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Finding the Fourth Proportional to 1,321,541.19, 1,823,665.19 and 748,585.46

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Solution

The fourth proportional to 1,321,541.19, 1,823,665.19 and 748,585.46 is: 1,033,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,541.19 : 1,823,665.19 = 748,585.46 : x
  2. Step 2: Convert to fraction form
    1,321,541.19/1,823,665.19 = 748,585.46/x
  3. Step 3: Cross multiply
    1,321,541.19x = 1,823,665.19 × 748,585.46
  4. Step 4: Simplify right side
    1,321,541.19x = 1,365,169,245,958.37
  5. Step 5: Solve for x
    x = 1,365,169,245,958.37/1,321,541.19
  6. Step 6: Final answer
    x = 1,033,013.01

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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.