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Finding the Fourth Proportional to 285,605.46, 394,314.65 and 183,807.70

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Solution

The fourth proportional to 285,605.46, 394,314.65 and 183,807.70 is: 253,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,605.46 : 394,314.65 = 183,807.70 : x
  2. Step 2: Convert to fraction form
    285,605.46/394,314.65 = 183,807.70/x
  3. Step 3: Cross multiply
    285,605.46x = 394,314.65 × 183,807.70
  4. Step 4: Simplify right side
    285,605.46x = 72,478,067,677.26
  5. Step 5: Solve for x
    x = 72,478,067,677.26/285,605.46
  6. Step 6: Final answer
    x = 253,769.90

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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.