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Finding the Fourth Proportional to 510,563.74, 765,849.41 and 190,787.89

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Solution

The fourth proportional to 510,563.74, 765,849.41 and 190,787.89 is: 286,183.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,563.74 : 765,849.41 = 190,787.89 : x
  2. Step 2: Convert to fraction form
    510,563.74/765,849.41 = 190,787.89/x
  3. Step 3: Cross multiply
    510,563.74x = 765,849.41 × 190,787.89
  4. Step 4: Simplify right side
    510,563.74x = 146,114,792,991.65
  5. Step 5: Solve for x
    x = 146,114,792,991.65/510,563.74
  6. Step 6: Final answer
    x = 286,183.25

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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.