Home / 621,971.10-933,940.80-472,380.30

Finding the Fourth Proportional to 621,971.10, 933,940.80 and 472,380.30

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Solution

The fourth proportional to 621,971.10, 933,940.80 and 472,380.30 is: 709,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,971.10 : 933,940.80 = 472,380.30 : x
  2. Step 2: Convert to fraction form
    621,971.10/933,940.80 = 472,380.30/x
  3. Step 3: Cross multiply
    621,971.10x = 933,940.80 × 472,380.30
  4. Step 4: Simplify right side
    621,971.10x = 441,175,235,286.24
  5. Step 5: Solve for x
    x = 441,175,235,286.24/621,971.10
  6. Step 6: Final answer
    x = 709,317.90

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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.