Home / 926,397.80-1,389,726.30-393,914.60

Finding the Fourth Proportional to 926,397.80, 1,389,726.30 and 393,914.60

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Solution

The fourth proportional to 926,397.80, 1,389,726.30 and 393,914.60 is: 590,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,397.80 : 1,389,726.30 = 393,914.60 : x
  2. Step 2: Convert to fraction form
    926,397.80/1,389,726.30 = 393,914.60/x
  3. Step 3: Cross multiply
    926,397.80x = 1,389,726.30 × 393,914.60
  4. Step 4: Simplify right side
    926,397.80x = 547,433,479,573.98
  5. Step 5: Solve for x
    x = 547,433,479,573.98/926,397.80
  6. Step 6: Final answer
    x = 590,927.01

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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.