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Finding the Fourth Proportional to 539,442.37, 744,426.81 and 297,724.94

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Solution

The fourth proportional to 539,442.37, 744,426.81 and 297,724.94 is: 410,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,442.37 : 744,426.81 = 297,724.94 : x
  2. Step 2: Convert to fraction form
    539,442.37/744,426.81 = 297,724.94/x
  3. Step 3: Cross multiply
    539,442.37x = 744,426.81 × 297,724.94
  4. Step 4: Simplify right side
    539,442.37x = 221,634,427,341.64
  5. Step 5: Solve for x
    x = 221,634,427,341.64/539,442.37
  6. Step 6: Final answer
    x = 410,858.40

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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.