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Finding the Fourth Proportional to 505,605.62, 758,521.42 and 190,065.26

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Solution

The fourth proportional to 505,605.62, 758,521.42 and 190,065.26 is: 285,140.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,605.62 : 758,521.42 = 190,065.26 : x
  2. Step 2: Convert to fraction form
    505,605.62/758,521.42 = 190,065.26/x
  3. Step 3: Cross multiply
    505,605.62x = 758,521.42 × 190,065.26
  4. Step 4: Simplify right side
    505,605.62x = 144,168,570,907.87
  5. Step 5: Solve for x
    x = 144,168,570,907.87/505,605.62
  6. Step 6: Final answer
    x = 285,140.36

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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.