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Finding the Fourth Proportional to 505,207.92, 697,203.82 and 275,778.81

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Solution

The fourth proportional to 505,207.92, 697,203.82 and 275,778.81 is: 380,583.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,207.92 : 697,203.82 = 275,778.81 : x
  2. Step 2: Convert to fraction form
    505,207.92/697,203.82 = 275,778.81/x
  3. Step 3: Cross multiply
    505,207.92x = 697,203.82 × 275,778.81
  4. Step 4: Simplify right side
    505,207.92x = 192,274,038,428.16
  5. Step 5: Solve for x
    x = 192,274,038,428.16/505,207.92
  6. Step 6: Final answer
    x = 380,583.98

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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.