Home / 2,185,709.40-3,278,564.10-2,101,728.60

Finding the Fourth Proportional to 2,185,709.40, 3,278,564.10 and 2,101,728.60

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Solution

The fourth proportional to 2,185,709.40, 3,278,564.10 and 2,101,728.60 is: 3,152,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,709.40 : 3,278,564.10 = 2,101,728.60 : x
  2. Step 2: Convert to fraction form
    2,185,709.40/3,278,564.10 = 2,101,728.60/x
  3. Step 3: Cross multiply
    2,185,709.40x = 3,278,564.10 × 2,101,728.60
  4. Step 4: Simplify right side
    2,185,709.40x = 6,890,651,935,903.26
  5. Step 5: Solve for x
    x = 6,890,651,935,903.26/2,185,709.40
  6. Step 6: Final answer
    x = 3,152,592.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.