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Finding the Fourth Proportional to 312,584.35, 431,366.63 and 183,497.59

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Solution

The fourth proportional to 312,584.35, 431,366.63 and 183,497.59 is: 253,226.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,584.35 : 431,366.63 = 183,497.59 : x
  2. Step 2: Convert to fraction form
    312,584.35/431,366.63 = 183,497.59/x
  3. Step 3: Cross multiply
    312,584.35x = 431,366.63 × 183,497.59
  4. Step 4: Simplify right side
    312,584.35x = 79,154,737,011.42
  5. Step 5: Solve for x
    x = 79,154,737,011.42/312,584.35
  6. Step 6: Final answer
    x = 253,226.81

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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.