Home / 319,256.20-478,884.30-177,538.60

Finding the Fourth Proportional to 319,256.20, 478,884.30 and 177,538.60

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Solution

The fourth proportional to 319,256.20, 478,884.30 and 177,538.60 is: 266,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,256.20 : 478,884.30 = 177,538.60 : x
  2. Step 2: Convert to fraction form
    319,256.20/478,884.30 = 177,538.60/x
  3. Step 3: Cross multiply
    319,256.20x = 478,884.30 × 177,538.60
  4. Step 4: Simplify right side
    319,256.20x = 85,020,448,183.98
  5. Step 5: Solve for x
    x = 85,020,448,183.98/319,256.20
  6. Step 6: Final answer
    x = 266,307.90

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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.