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Finding the Fourth Proportional to 349,816.40, 525,113.40 and 216,846.80

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Solution

The fourth proportional to 349,816.40, 525,113.40 and 216,846.80 is: 325,511.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,816.40 : 525,113.40 = 216,846.80 : x
  2. Step 2: Convert to fraction form
    349,816.40/525,113.40 = 216,846.80/x
  3. Step 3: Cross multiply
    349,816.40x = 525,113.40 × 216,846.80
  4. Step 4: Simplify right side
    349,816.40x = 113,869,160,427.12
  5. Step 5: Solve for x
    x = 113,869,160,427.12/349,816.40
  6. Step 6: Final answer
    x = 325,511.21

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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.