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Finding the Fourth Proportional to 507,995.74, 701,065.56 and 281,641.24

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Solution

The fourth proportional to 507,995.74, 701,065.56 and 281,641.24 is: 388,682.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,995.74 : 701,065.56 = 281,641.24 : x
  2. Step 2: Convert to fraction form
    507,995.74/701,065.56 = 281,641.24/x
  3. Step 3: Cross multiply
    507,995.74x = 701,065.56 × 281,641.24
  4. Step 4: Simplify right side
    507,995.74x = 197,448,970,044.46
  5. Step 5: Solve for x
    x = 197,448,970,044.46/507,995.74
  6. Step 6: Final answer
    x = 388,682.34

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Double scale
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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.