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Finding the Fourth Proportional to 585,686.66, 878,665.31 and 248,738.30

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Solution

The fourth proportional to 585,686.66, 878,665.31 and 248,738.30 is: 373,164.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,686.66 : 878,665.31 = 248,738.30 : x
  2. Step 2: Convert to fraction form
    585,686.66/878,665.31 = 248,738.30/x
  3. Step 3: Cross multiply
    585,686.66x = 878,665.31 × 248,738.30
  4. Step 4: Simplify right side
    585,686.66x = 218,557,714,069.12
  5. Step 5: Solve for x
    x = 218,557,714,069.12/585,686.66
  6. Step 6: Final answer
    x = 373,164.92

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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.