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Finding the Fourth Proportional to 617,067.40, 851,539.70 and 334,443.40

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Solution

The fourth proportional to 617,067.40, 851,539.70 and 334,443.40 is: 461,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,067.40 : 851,539.70 = 334,443.40 : x
  2. Step 2: Convert to fraction form
    617,067.40/851,539.70 = 334,443.40/x
  3. Step 3: Cross multiply
    617,067.40x = 851,539.70 × 334,443.40
  4. Step 4: Simplify right side
    617,067.40x = 284,791,832,502.98
  5. Step 5: Solve for x
    x = 284,791,832,502.98/617,067.40
  6. Step 6: Final answer
    x = 461,524.68

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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.