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Finding the Fourth Proportional to 666,612.56, 919,924.73 and 376,285.24

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Solution

The fourth proportional to 666,612.56, 919,924.73 and 376,285.24 is: 519,273.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,612.56 : 919,924.73 = 376,285.24 : x
  2. Step 2: Convert to fraction form
    666,612.56/919,924.73 = 376,285.24/x
  3. Step 3: Cross multiply
    666,612.56x = 919,924.73 × 376,285.24
  4. Step 4: Simplify right side
    666,612.56x = 346,154,096,450.89
  5. Step 5: Solve for x
    x = 346,154,096,450.89/666,612.56
  6. Step 6: Final answer
    x = 519,273.29

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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.