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Finding the Fourth Proportional to 472,522.50, 708,783.75 and 122,314.50

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Solution

The fourth proportional to 472,522.50, 708,783.75 and 122,314.50 is: 183,471.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,522.50 : 708,783.75 = 122,314.50 : x
  2. Step 2: Convert to fraction form
    472,522.50/708,783.75 = 122,314.50/x
  3. Step 3: Cross multiply
    472,522.50x = 708,783.75 × 122,314.50
  4. Step 4: Simplify right side
    472,522.50x = 86,694,529,989.38
  5. Step 5: Solve for x
    x = 86,694,529,989.38/472,522.50
  6. Step 6: Final answer
    x = 183,471.75

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.