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Finding the Fourth Proportional to 484,923.25, 669,500.46 and 357,376.69

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Solution

The fourth proportional to 484,923.25, 669,500.46 and 357,376.69 is: 493,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,923.25 : 669,500.46 = 357,376.69 : x
  2. Step 2: Convert to fraction form
    484,923.25/669,500.46 = 357,376.69/x
  3. Step 3: Cross multiply
    484,923.25x = 669,500.46 × 357,376.69
  4. Step 4: Simplify right side
    484,923.25x = 239,263,853,213.89
  5. Step 5: Solve for x
    x = 239,263,853,213.89/484,923.25
  6. Step 6: Final answer
    x = 493,405.62

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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.