Home / 926,410.80-1,388,579.40-393,841.20

Finding the Fourth Proportional to 926,410.80, 1,388,579.40 and 393,841.20

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Solution

The fourth proportional to 926,410.80, 1,388,579.40 and 393,841.20 is: 590,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,410.80 : 1,388,579.40 = 393,841.20 : x
  2. Step 2: Convert to fraction form
    926,410.80/1,388,579.40 = 393,841.20/x
  3. Step 3: Cross multiply
    926,410.80x = 1,388,579.40 × 393,841.20
  4. Step 4: Simplify right side
    926,410.80x = 546,879,777,191.28
  5. Step 5: Solve for x
    x = 546,879,777,191.28/926,410.80
  6. Step 6: Final answer
    x = 590,321.03

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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.