Home / 1,689,905.80-2,535,024.30-491,840.20

Finding the Fourth Proportional to 1,689,905.80, 2,535,024.30 and 491,840.20

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Solution

The fourth proportional to 1,689,905.80, 2,535,024.30 and 491,840.20 is: 737,808.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,905.80 : 2,535,024.30 = 491,840.20 : x
  2. Step 2: Convert to fraction form
    1,689,905.80/2,535,024.30 = 491,840.20/x
  3. Step 3: Cross multiply
    1,689,905.80x = 2,535,024.30 × 491,840.20
  4. Step 4: Simplify right side
    1,689,905.80x = 1,246,826,858,716.86
  5. Step 5: Solve for x
    x = 1,246,826,858,716.86/1,689,905.80
  6. Step 6: Final answer
    x = 737,808.50

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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.