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Finding the Fourth Proportional to 520,168.52, 717,890.94 and 293,828.60

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Solution

The fourth proportional to 520,168.52, 717,890.94 and 293,828.60 is: 405,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,168.52 : 717,890.94 = 293,828.60 : x
  2. Step 2: Convert to fraction form
    520,168.52/717,890.94 = 293,828.60/x
  3. Step 3: Cross multiply
    520,168.52x = 717,890.94 × 293,828.60
  4. Step 4: Simplify right side
    520,168.52x = 210,936,889,852.88
  5. Step 5: Solve for x
    x = 210,936,889,852.88/520,168.52
  6. Step 6: Final answer
    x = 405,516.45

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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.