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Finding the Fourth Proportional to 539,855.56, 745,000.74 and 301,391.56

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Solution

The fourth proportional to 539,855.56, 745,000.74 and 301,391.56 is: 415,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,855.56 : 745,000.74 = 301,391.56 : x
  2. Step 2: Convert to fraction form
    539,855.56/745,000.74 = 301,391.56/x
  3. Step 3: Cross multiply
    539,855.56x = 745,000.74 × 301,391.56
  4. Step 4: Simplify right side
    539,855.56x = 224,536,935,229.75
  5. Step 5: Solve for x
    x = 224,536,935,229.75/539,855.56
  6. Step 6: Final answer
    x = 415,920.39

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1.5x scale

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.