Home / 265,528.02-398,280.24-85,609.38

Finding the Fourth Proportional to 265,528.02, 398,280.24 and 85,609.38

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Solution

The fourth proportional to 265,528.02, 398,280.24 and 85,609.38 is: 128,410.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,528.02 : 398,280.24 = 85,609.38 : x
  2. Step 2: Convert to fraction form
    265,528.02/398,280.24 = 85,609.38/x
  3. Step 3: Cross multiply
    265,528.02x = 398,280.24 × 85,609.38
  4. Step 4: Simplify right side
    265,528.02x = 34,096,524,412.65
  5. Step 5: Solve for x
    x = 34,096,524,412.65/265,528.02
  6. Step 6: Final answer
    x = 128,410.27

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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.