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Finding the Fourth Proportional to 711,224.94, 980,835.34 and 466,120.42

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Solution

The fourth proportional to 711,224.94, 980,835.34 and 466,120.42 is: 642,816.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,224.94 : 980,835.34 = 466,120.42 : x
  2. Step 2: Convert to fraction form
    711,224.94/980,835.34 = 466,120.42/x
  3. Step 3: Cross multiply
    711,224.94x = 980,835.34 × 466,120.42
  4. Step 4: Simplify right side
    711,224.94x = 457,187,380,631.64
  5. Step 5: Solve for x
    x = 457,187,380,631.64/711,224.94
  6. Step 6: Final answer
    x = 642,816.86

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Double scale
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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.