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Finding the Fourth Proportional to 539,887.88, 745,050.90 and 298,176.59

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Solution

The fourth proportional to 539,887.88, 745,050.90 and 298,176.59 is: 411,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,887.88 : 745,050.90 = 298,176.59 : x
  2. Step 2: Convert to fraction form
    539,887.88/745,050.90 = 298,176.59/x
  3. Step 3: Cross multiply
    539,887.88x = 745,050.90 × 298,176.59
  4. Step 4: Simplify right side
    539,887.88x = 222,156,736,738.43
  5. Step 5: Solve for x
    x = 222,156,736,738.43/539,887.88
  6. Step 6: Final answer
    x = 411,486.80

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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.