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Finding the Fourth Proportional to 618,538.33, 926,232.45 and 407,536.57

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Solution

The fourth proportional to 618,538.33, 926,232.45 and 407,536.57 is: 610,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,538.33 : 926,232.45 = 407,536.57 : x
  2. Step 2: Convert to fraction form
    618,538.33/926,232.45 = 407,536.57/x
  3. Step 3: Cross multiply
    618,538.33x = 926,232.45 × 407,536.57
  4. Step 4: Simplify right side
    618,538.33x = 377,473,595,695.70
  5. Step 5: Solve for x
    x = 377,473,595,695.70/618,538.33
  6. Step 6: Final answer
    x = 610,267.10

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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.