Home / 437,518.57-656,314.91-121,975.78

Finding the Fourth Proportional to 437,518.57, 656,314.91 and 121,975.78

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Solution

The fourth proportional to 437,518.57, 656,314.91 and 121,975.78 is: 182,974.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,518.57 : 656,314.91 = 121,975.78 : x
  2. Step 2: Convert to fraction form
    437,518.57/656,314.91 = 121,975.78/x
  3. Step 3: Cross multiply
    437,518.57x = 656,314.91 × 121,975.78
  4. Step 4: Simplify right side
    437,518.57x = 80,054,523,072.88
  5. Step 5: Solve for x
    x = 80,054,523,072.88/437,518.57
  6. Step 6: Final answer
    x = 182,974.00

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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.