Home / 1,240,810.40-1,861,215.60-530,910.20

Finding the Fourth Proportional to 1,240,810.40, 1,861,215.60 and 530,910.20

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Solution

The fourth proportional to 1,240,810.40, 1,861,215.60 and 530,910.20 is: 796,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,810.40 : 1,861,215.60 = 530,910.20 : x
  2. Step 2: Convert to fraction form
    1,240,810.40/1,861,215.60 = 530,910.20/x
  3. Step 3: Cross multiply
    1,240,810.40x = 1,861,215.60 × 530,910.20
  4. Step 4: Simplify right side
    1,240,810.40x = 988,138,346,439.12
  5. Step 5: Solve for x
    x = 988,138,346,439.12/1,240,810.40
  6. Step 6: Final answer
    x = 796,365.30

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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.