Home / 926,643.12-1,389,519.44-393,875.36

Finding the Fourth Proportional to 926,643.12, 1,389,519.44 and 393,875.36

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Solution

The fourth proportional to 926,643.12, 1,389,519.44 and 393,875.36 is: 590,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,643.12 : 1,389,519.44 = 393,875.36 : x
  2. Step 2: Convert to fraction form
    926,643.12/1,389,519.44 = 393,875.36/x
  3. Step 3: Cross multiply
    926,643.12x = 1,389,519.44 × 393,875.36
  4. Step 4: Simplify right side
    926,643.12x = 547,297,469,657.00
  5. Step 5: Solve for x
    x = 547,297,469,657.00/926,643.12
  6. Step 6: Final answer
    x = 590,623.79

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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.