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Finding the Fourth Proportional to 1,935,744.42, 2,671,188.45 and 1,064,639.54

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Solution

The fourth proportional to 1,935,744.42, 2,671,188.45 and 1,064,639.54 is: 1,469,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935,744.42 : 2,671,188.45 = 1,064,639.54 : x
  2. Step 2: Convert to fraction form
    1,935,744.42/2,671,188.45 = 1,064,639.54/x
  3. Step 3: Cross multiply
    1,935,744.42x = 2,671,188.45 × 1,064,639.54
  4. Step 4: Simplify right side
    1,935,744.42x = 2,843,852,842,661.31
  5. Step 5: Solve for x
    x = 2,843,852,842,661.31/1,935,744.42
  6. Step 6: Final answer
    x = 1,469,126.20

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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.