Home / 1,965,640.32-2,712,134.86-1,105,886.88

Finding the Fourth Proportional to 1,965,640.32, 2,712,134.86 and 1,105,886.88

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Solution

The fourth proportional to 1,965,640.32, 2,712,134.86 and 1,105,886.88 is: 1,525,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,640.32 : 2,712,134.86 = 1,105,886.88 : x
  2. Step 2: Convert to fraction form
    1,965,640.32/2,712,134.86 = 1,105,886.88/x
  3. Step 3: Cross multiply
    1,965,640.32x = 2,712,134.86 × 1,105,886.88
  4. Step 4: Simplify right side
    1,965,640.32x = 2,999,314,365,870.43
  5. Step 5: Solve for x
    x = 2,999,314,365,870.43/1,965,640.32
  6. Step 6: Final answer
    x = 1,525,871.41

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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.