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Finding the Fourth Proportional to 303,486.55, 424,093.85 and 303,486.55

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Solution

The fourth proportional to 303,486.55, 424,093.85 and 303,486.55 is: 424,093.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,486.55 : 424,093.85 = 303,486.55 : x
  2. Step 2: Convert to fraction form
    303,486.55/424,093.85 = 303,486.55/x
  3. Step 3: Cross multiply
    303,486.55x = 424,093.85 × 303,486.55
  4. Step 4: Simplify right side
    303,486.55x = 128,706,779,412.72
  5. Step 5: Solve for x
    x = 128,706,779,412.72/303,486.55
  6. Step 6: Final answer
    x = 424,093.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.