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Finding the Fourth Proportional to 672,772.84, 928,425.54 and 370,967.56

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Solution

The fourth proportional to 672,772.84, 928,425.54 and 370,967.56 is: 511,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,772.84 : 928,425.54 = 370,967.56 : x
  2. Step 2: Convert to fraction form
    672,772.84/928,425.54 = 370,967.56/x
  3. Step 3: Cross multiply
    672,772.84x = 928,425.54 × 370,967.56
  4. Step 4: Simplify right side
    672,772.84x = 344,415,757,215.48
  5. Step 5: Solve for x
    x = 344,415,757,215.48/672,772.84
  6. Step 6: Final answer
    x = 511,934.69

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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.