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Finding the Fourth Proportional to 539,543.95, 744,570.80 and 297,826.68

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Solution

The fourth proportional to 539,543.95, 744,570.80 and 297,826.68 is: 411,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,543.95 : 744,570.80 = 297,826.68 : x
  2. Step 2: Convert to fraction form
    539,543.95/744,570.80 = 297,826.68/x
  3. Step 3: Cross multiply
    539,543.95x = 744,570.80 × 297,826.68
  4. Step 4: Simplify right side
    539,543.95x = 221,753,049,388.94
  5. Step 5: Solve for x
    x = 221,753,049,388.94/539,543.95
  6. Step 6: Final answer
    x = 411,000.90

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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.