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Finding the Fourth Proportional to 539,639.34, 744,703.23 and 297,922.30

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Solution

The fourth proportional to 539,639.34, 744,703.23 and 297,922.30 is: 411,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,639.34 : 744,703.23 = 297,922.30 : x
  2. Step 2: Convert to fraction form
    539,639.34/744,703.23 = 297,922.30/x
  3. Step 3: Cross multiply
    539,639.34x = 744,703.23 × 297,922.30
  4. Step 4: Simplify right side
    539,639.34x = 221,863,699,099.03
  5. Step 5: Solve for x
    x = 221,863,699,099.03/539,639.34
  6. Step 6: Final answer
    x = 411,133.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.