Home / 340,911.27-511,440.75-130,549.23

Finding the Fourth Proportional to 340,911.27, 511,440.75 and 130,549.23

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Solution

The fourth proportional to 340,911.27, 511,440.75 and 130,549.23 is: 195,852.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,911.27 : 511,440.75 = 130,549.23 : x
  2. Step 2: Convert to fraction form
    340,911.27/511,440.75 = 130,549.23/x
  3. Step 3: Cross multiply
    340,911.27x = 511,440.75 × 130,549.23
  4. Step 4: Simplify right side
    340,911.27x = 66,768,196,103.12
  5. Step 5: Solve for x
    x = 66,768,196,103.12/340,911.27
  6. Step 6: Final answer
    x = 195,852.12

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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.