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Finding the Fourth Proportional to 539,521.19, 744,539.29 and 297,803.83

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Solution

The fourth proportional to 539,521.19, 744,539.29 and 297,803.83 is: 410,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,521.19 : 744,539.29 = 297,803.83 : x
  2. Step 2: Convert to fraction form
    539,521.19/744,539.29 = 297,803.83/x
  3. Step 3: Cross multiply
    539,521.19x = 744,539.29 × 297,803.83
  4. Step 4: Simplify right side
    539,521.19x = 221,726,646,935.77
  5. Step 5: Solve for x
    x = 221,726,646,935.77/539,521.19
  6. Step 6: Final answer
    x = 410,969.30

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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.