Home / 926,437.80-1,388,619.90-393,868.20

Finding the Fourth Proportional to 926,437.80, 1,388,619.90 and 393,868.20

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Solution

The fourth proportional to 926,437.80, 1,388,619.90 and 393,868.20 is: 590,361.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,437.80 : 1,388,619.90 = 393,868.20 : x
  2. Step 2: Convert to fraction form
    926,437.80/1,388,619.90 = 393,868.20/x
  3. Step 3: Cross multiply
    926,437.80x = 1,388,619.90 × 393,868.20
  4. Step 4: Simplify right side
    926,437.80x = 546,933,220,497.18
  5. Step 5: Solve for x
    x = 546,933,220,497.18/926,437.80
  6. Step 6: Final answer
    x = 590,361.51

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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.