Home / 1,238,816.80-1,858,225.20-440,999.20

Finding the Fourth Proportional to 1,238,816.80, 1,858,225.20 and 440,999.20

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Solution

The fourth proportional to 1,238,816.80, 1,858,225.20 and 440,999.20 is: 661,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,816.80 : 1,858,225.20 = 440,999.20 : x
  2. Step 2: Convert to fraction form
    1,238,816.80/1,858,225.20 = 440,999.20/x
  3. Step 3: Cross multiply
    1,238,816.80x = 1,858,225.20 × 440,999.20
  4. Step 4: Simplify right side
    1,238,816.80x = 819,475,826,619.84
  5. Step 5: Solve for x
    x = 819,475,826,619.84/1,238,816.80
  6. Step 6: Final answer
    x = 661,498.80

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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.