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Finding the Fourth Proportional to 607,519.85, 838,342.66 and 362,780.78

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Solution

The fourth proportional to 607,519.85, 838,342.66 and 362,780.78 is: 500,616.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,519.85 : 838,342.66 = 362,780.78 : x
  2. Step 2: Convert to fraction form
    607,519.85/838,342.66 = 362,780.78/x
  3. Step 3: Cross multiply
    607,519.85x = 838,342.66 × 362,780.78
  4. Step 4: Simplify right side
    607,519.85x = 304,134,599,003.41
  5. Step 5: Solve for x
    x = 304,134,599,003.41/607,519.85
  6. Step 6: Final answer
    x = 500,616.73

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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.