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Finding the Fourth Proportional to 503,722.40, 755,583.60 and 465,231.20

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Solution

The fourth proportional to 503,722.40, 755,583.60 and 465,231.20 is: 697,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,722.40 : 755,583.60 = 465,231.20 : x
  2. Step 2: Convert to fraction form
    503,722.40/755,583.60 = 465,231.20/x
  3. Step 3: Cross multiply
    503,722.40x = 755,583.60 × 465,231.20
  4. Step 4: Simplify right side
    503,722.40x = 351,521,064,928.32
  5. Step 5: Solve for x
    x = 351,521,064,928.32/503,722.40
  6. Step 6: Final answer
    x = 697,846.80

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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.