Home / 691,023.20-953,641.44-385,099.94

Finding the Fourth Proportional to 691,023.20, 953,641.44 and 385,099.94

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Solution

The fourth proportional to 691,023.20, 953,641.44 and 385,099.94 is: 531,454.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,023.20 : 953,641.44 = 385,099.94 : x
  2. Step 2: Convert to fraction form
    691,023.20/953,641.44 = 385,099.94/x
  3. Step 3: Cross multiply
    691,023.20x = 953,641.44 × 385,099.94
  4. Step 4: Simplify right side
    691,023.20x = 367,247,261,325.51
  5. Step 5: Solve for x
    x = 367,247,261,325.51/691,023.20
  6. Step 6: Final answer
    x = 531,454.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.