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Finding the Fourth Proportional to 672,619.70, 927,690.30 and 430,924.77

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Solution

The fourth proportional to 672,619.70, 927,690.30 and 430,924.77 is: 594,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,619.70 : 927,690.30 = 430,924.77 : x
  2. Step 2: Convert to fraction form
    672,619.70/927,690.30 = 430,924.77/x
  3. Step 3: Cross multiply
    672,619.70x = 927,690.30 × 430,924.77
  4. Step 4: Simplify right side
    672,619.70x = 399,764,729,158.73
  5. Step 5: Solve for x
    x = 399,764,729,158.73/672,619.70
  6. Step 6: Final answer
    x = 594,339.90

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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.