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Finding the Fourth Proportional to 296,514.10, 444,661.80 and 128,042.20

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Solution

The fourth proportional to 296,514.10, 444,661.80 and 128,042.20 is: 192,016.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,514.10 : 444,661.80 = 128,042.20 : x
  2. Step 2: Convert to fraction form
    296,514.10/444,661.80 = 128,042.20/x
  3. Step 3: Cross multiply
    296,514.10x = 444,661.80 × 128,042.20
  4. Step 4: Simplify right side
    296,514.10x = 56,935,475,127.96
  5. Step 5: Solve for x
    x = 56,935,475,127.96/296,514.10
  6. Step 6: Final answer
    x = 192,016.08

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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.