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Finding the Fourth Proportional to 505,739.99, 758,720.88 and 190,196.93

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Solution

The fourth proportional to 505,739.99, 758,720.88 and 190,196.93 is: 285,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,739.99 : 758,720.88 = 190,196.93 : x
  2. Step 2: Convert to fraction form
    505,739.99/758,720.88 = 190,196.93/x
  3. Step 3: Cross multiply
    505,739.99x = 758,720.88 × 190,196.93
  4. Step 4: Simplify right side
    505,739.99x = 144,306,378,309.29
  5. Step 5: Solve for x
    x = 144,306,378,309.29/505,739.99
  6. Step 6: Final answer
    x = 285,337.10

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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.