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Finding the Fourth Proportional to 539,543.45, 744,570.11 and 297,826.18

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Solution

The fourth proportional to 539,543.45, 744,570.11 and 297,826.18 is: 411,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,543.45 : 744,570.11 = 297,826.18 : x
  2. Step 2: Convert to fraction form
    539,543.45/744,570.11 = 297,826.18/x
  3. Step 3: Cross multiply
    539,543.45x = 744,570.11 × 297,826.18
  4. Step 4: Simplify right side
    539,543.45x = 221,752,471,603.48
  5. Step 5: Solve for x
    x = 221,752,471,603.48/539,543.45
  6. Step 6: Final answer
    x = 411,000.21

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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.