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Finding the Fourth Proportional to 505,201.11, 697,167 and 275,762.94

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Solution

The fourth proportional to 505,201.11, 697,167 and 275,762.94 is: 380,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,201.11 : 697,167 = 275,762.94 : x
  2. Step 2: Convert to fraction form
    505,201.11/697,167 = 275,762.94/x
  3. Step 3: Cross multiply
    505,201.11x = 697,167 × 275,762.94
  4. Step 4: Simplify right side
    505,201.11x = 192,252,821,590.98
  5. Step 5: Solve for x
    x = 192,252,821,590.98/505,201.11
  6. Step 6: Final answer
    x = 380,547.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.