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Finding the Fourth Proportional to 519,597.98, 779,427.21 and 145,650.14

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Solution

The fourth proportional to 519,597.98, 779,427.21 and 145,650.14 is: 218,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,597.98 : 779,427.21 = 145,650.14 : x
  2. Step 2: Convert to fraction form
    519,597.98/779,427.21 = 145,650.14/x
  3. Step 3: Cross multiply
    519,597.98x = 779,427.21 × 145,650.14
  4. Step 4: Simplify right side
    519,597.98x = 113,523,682,256.31
  5. Step 5: Solve for x
    x = 113,523,682,256.31/519,597.98
  6. Step 6: Final answer
    x = 218,483.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.