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Finding the Fourth Proportional to 256,366.32, 383,792.20 and 189,361.52

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Solution

The fourth proportional to 256,366.32, 383,792.20 and 189,361.52 is: 283,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,366.32 : 383,792.20 = 189,361.52 : x
  2. Step 2: Convert to fraction form
    256,366.32/383,792.20 = 189,361.52/x
  3. Step 3: Cross multiply
    256,366.32x = 383,792.20 × 189,361.52
  4. Step 4: Simplify right side
    256,366.32x = 72,675,474,356.14
  5. Step 5: Solve for x
    x = 72,675,474,356.14/256,366.32
  6. Step 6: Final answer
    x = 283,482.93

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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.