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Finding the Fourth Proportional to 508,072.19, 701,108.12 and 281,717.69

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Solution

The fourth proportional to 508,072.19, 701,108.12 and 281,717.69 is: 388,752.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,072.19 : 701,108.12 = 281,717.69 : x
  2. Step 2: Convert to fraction form
    508,072.19/701,108.12 = 281,717.69/x
  3. Step 3: Cross multiply
    508,072.19x = 701,108.12 × 281,717.69
  4. Step 4: Simplify right side
    508,072.19x = 197,514,557,205.40
  5. Step 5: Solve for x
    x = 197,514,557,205.40/508,072.19
  6. Step 6: Final answer
    x = 388,752.94

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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.