Home / 611,042.72-916,345.35-211,576.23

Finding the Fourth Proportional to 611,042.72, 916,345.35 and 211,576.23

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Solution

The fourth proportional to 611,042.72, 916,345.35 and 211,576.23 is: 317,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,042.72 : 916,345.35 = 211,576.23 : x
  2. Step 2: Convert to fraction form
    611,042.72/916,345.35 = 211,576.23/x
  3. Step 3: Cross multiply
    611,042.72x = 916,345.35 × 211,576.23
  4. Step 4: Simplify right side
    611,042.72x = 193,876,894,531.03
  5. Step 5: Solve for x
    x = 193,876,894,531.03/611,042.72
  6. Step 6: Final answer
    x = 317,288.61

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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.