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Finding the Fourth Proportional to 651,232.60, 978,015.30 and 473,939.80

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Solution

The fourth proportional to 651,232.60, 978,015.30 and 473,939.80 is: 711,758.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,232.60 : 978,015.30 = 473,939.80 : x
  2. Step 2: Convert to fraction form
    651,232.60/978,015.30 = 473,939.80/x
  3. Step 3: Cross multiply
    651,232.60x = 978,015.30 × 473,939.80
  4. Step 4: Simplify right side
    651,232.60x = 463,520,375,678.94
  5. Step 5: Solve for x
    x = 463,520,375,678.94/651,232.60
  6. Step 6: Final answer
    x = 711,758.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.