Home / 505,717.56-758,687.20-190,174.36

Finding the Fourth Proportional to 505,717.56, 758,687.20 and 190,174.36

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Solution

The fourth proportional to 505,717.56, 758,687.20 and 190,174.36 is: 285,303.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,717.56 : 758,687.20 = 190,174.36 : x
  2. Step 2: Convert to fraction form
    505,717.56/758,687.20 = 190,174.36/x
  3. Step 3: Cross multiply
    505,717.56x = 758,687.20 × 190,174.36
  4. Step 4: Simplify right side
    505,717.56x = 144,282,852,700.19
  5. Step 5: Solve for x
    x = 144,282,852,700.19/505,717.56
  6. Step 6: Final answer
    x = 285,303.23

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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.