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Finding the Fourth Proportional to 359,427.40, 538,881.90 and 201,704.20

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Solution

The fourth proportional to 359,427.40, 538,881.90 and 201,704.20 is: 302,410.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,427.40 : 538,881.90 = 201,704.20 : x
  2. Step 2: Convert to fraction form
    359,427.40/538,881.90 = 201,704.20/x
  3. Step 3: Cross multiply
    359,427.40x = 538,881.90 × 201,704.20
  4. Step 4: Simplify right side
    359,427.40x = 108,694,742,533.98
  5. Step 5: Solve for x
    x = 108,694,742,533.98/359,427.40
  6. Step 6: Final answer
    x = 302,410.84

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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.