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Finding the Fourth Proportional to 539,521.64, 744,539.90 and 297,804.27

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Solution

The fourth proportional to 539,521.64, 744,539.90 and 297,804.27 is: 410,969.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,521.64 : 744,539.90 = 297,804.27 : x
  2. Step 2: Convert to fraction form
    539,521.64/744,539.90 = 297,804.27/x
  3. Step 3: Cross multiply
    539,521.64x = 744,539.90 × 297,804.27
  4. Step 4: Simplify right side
    539,521.64x = 221,727,159,916.35
  5. Step 5: Solve for x
    x = 221,727,159,916.35/539,521.64
  6. Step 6: Final answer
    x = 410,969.91

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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.