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Finding the Fourth Proportional to 505,632.27, 697,765.54 and 276,186.81

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Solution

The fourth proportional to 505,632.27, 697,765.54 and 276,186.81 is: 381,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,632.27 : 697,765.54 = 276,186.81 : x
  2. Step 2: Convert to fraction form
    505,632.27/697,765.54 = 276,186.81/x
  3. Step 3: Cross multiply
    505,632.27x = 697,765.54 × 276,186.81
  4. Step 4: Simplify right side
    505,632.27x = 192,713,641,064.53
  5. Step 5: Solve for x
    x = 192,713,641,064.53/505,632.27
  6. Step 6: Final answer
    x = 381,133.98

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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.