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Finding the Fourth Proportional to 458,095.02, 687,131.28 and 177,612.36

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Solution

The fourth proportional to 458,095.02, 687,131.28 and 177,612.36 is: 266,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,095.02 : 687,131.28 = 177,612.36 : x
  2. Step 2: Convert to fraction form
    458,095.02/687,131.28 = 177,612.36/x
  3. Step 3: Cross multiply
    458,095.02x = 687,131.28 × 177,612.36
  4. Step 4: Simplify right side
    458,095.02x = 122,043,008,270.62
  5. Step 5: Solve for x
    x = 122,043,008,270.62/458,095.02
  6. Step 6: Final answer
    x = 266,414.18

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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.