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Finding the Fourth Proportional to 505,703.22, 758,665.64 and 190,160.16

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Solution

The fourth proportional to 505,703.22, 758,665.64 and 190,160.16 is: 285,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,703.22 : 758,665.64 = 190,160.16 : x
  2. Step 2: Convert to fraction form
    505,703.22/758,665.64 = 190,160.16/x
  3. Step 3: Cross multiply
    505,703.22x = 758,665.64 × 190,160.16
  4. Step 4: Simplify right side
    505,703.22x = 144,267,979,488.90
  5. Step 5: Solve for x
    x = 144,267,979,488.90/505,703.22
  6. Step 6: Final answer
    x = 285,281.91

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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.