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Finding the Fourth Proportional to 505,527.94, 697,628.42 and 279,173.44

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Solution

The fourth proportional to 505,527.94, 697,628.42 and 279,173.44 is: 385,259.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,527.94 : 697,628.42 = 279,173.44 : x
  2. Step 2: Convert to fraction form
    505,527.94/697,628.42 = 279,173.44/x
  3. Step 3: Cross multiply
    505,527.94x = 697,628.42 × 279,173.44
  4. Step 4: Simplify right side
    505,527.94x = 194,759,325,853.17
  5. Step 5: Solve for x
    x = 194,759,325,853.17/505,527.94
  6. Step 6: Final answer
    x = 385,259.27

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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.