Home / 1,393,611.80-2,090,417.70-396,210.20

Finding the Fourth Proportional to 1,393,611.80, 2,090,417.70 and 396,210.20

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Solution

The fourth proportional to 1,393,611.80, 2,090,417.70 and 396,210.20 is: 594,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,611.80 : 2,090,417.70 = 396,210.20 : x
  2. Step 2: Convert to fraction form
    1,393,611.80/2,090,417.70 = 396,210.20/x
  3. Step 3: Cross multiply
    1,393,611.80x = 2,090,417.70 × 396,210.20
  4. Step 4: Simplify right side
    1,393,611.80x = 828,244,815,000.54
  5. Step 5: Solve for x
    x = 828,244,815,000.54/1,393,611.80
  6. Step 6: Final answer
    x = 594,315.30

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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.