Home / 309,516.47-426,951.30-194,613.00

Finding the Fourth Proportional to 309,516.47, 426,951.30 and 194,613.00

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Solution

The fourth proportional to 309,516.47, 426,951.30 and 194,613.00 is: 268,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,516.47 : 426,951.30 = 194,613.00 : x
  2. Step 2: Convert to fraction form
    309,516.47/426,951.30 = 194,613.00/x
  3. Step 3: Cross multiply
    309,516.47x = 426,951.30 × 194,613.00
  4. Step 4: Simplify right side
    309,516.47x = 83,090,276,078.03
  5. Step 5: Solve for x
    x = 83,090,276,078.03/309,516.47
  6. Step 6: Final answer
    x = 268,451.88

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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.