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Finding the Fourth Proportional to 539,535.05, 744,558.26 and 297,817.56

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Solution

The fourth proportional to 539,535.05, 744,558.26 and 297,817.56 is: 410,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,535.05 : 744,558.26 = 297,817.56 : x
  2. Step 2: Convert to fraction form
    539,535.05/744,558.26 = 297,817.56/x
  3. Step 3: Cross multiply
    539,535.05x = 744,558.26 × 297,817.56
  4. Step 4: Simplify right side
    539,535.05x = 221,742,519,059.17
  5. Step 5: Solve for x
    x = 221,742,519,059.17/539,535.05
  6. Step 6: Final answer
    x = 410,988.16

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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.