Home / 509,899.50-764,865.45-154,916.60

Finding the Fourth Proportional to 509,899.50, 764,865.45 and 154,916.60

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Solution

The fourth proportional to 509,899.50, 764,865.45 and 154,916.60 is: 232,379.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,899.50 : 764,865.45 = 154,916.60 : x
  2. Step 2: Convert to fraction form
    509,899.50/764,865.45 = 154,916.60/x
  3. Step 3: Cross multiply
    509,899.50x = 764,865.45 × 154,916.60
  4. Step 4: Simplify right side
    509,899.50x = 118,490,351,147.14
  5. Step 5: Solve for x
    x = 118,490,351,147.14/509,899.50
  6. Step 6: Final answer
    x = 232,379.81

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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.