Home / 1,353,529.01-1,867,869.78-809,687.72

Finding the Fourth Proportional to 1,353,529.01, 1,867,869.78 and 809,687.72

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Solution

The fourth proportional to 1,353,529.01, 1,867,869.78 and 809,687.72 is: 1,117,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,529.01 : 1,867,869.78 = 809,687.72 : x
  2. Step 2: Convert to fraction form
    1,353,529.01/1,867,869.78 = 809,687.72/x
  3. Step 3: Cross multiply
    1,353,529.01x = 1,867,869.78 × 809,687.72
  4. Step 4: Simplify right side
    1,353,529.01x = 1,512,391,223,425.10
  5. Step 5: Solve for x
    x = 1,512,391,223,425.10/1,353,529.01
  6. Step 6: Final answer
    x = 1,117,368.90

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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.