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Finding the Fourth Proportional to 409,889.14, 610,759.04 and 365,172.28

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Solution

The fourth proportional to 409,889.14, 610,759.04 and 365,172.28 is: 544,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,889.14 : 610,759.04 = 365,172.28 : x
  2. Step 2: Convert to fraction form
    409,889.14/610,759.04 = 365,172.28/x
  3. Step 3: Cross multiply
    409,889.14x = 610,759.04 × 365,172.28
  4. Step 4: Simplify right side
    409,889.14x = 223,032,271,167.41
  5. Step 5: Solve for x
    x = 223,032,271,167.41/409,889.14
  6. Step 6: Final answer
    x = 544,128.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.