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Finding the Fourth Proportional to 493,775.55, 740,219.85 and 194,460.30

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Solution

The fourth proportional to 493,775.55, 740,219.85 and 194,460.30 is: 291,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,775.55 : 740,219.85 = 194,460.30 : x
  2. Step 2: Convert to fraction form
    493,775.55/740,219.85 = 194,460.30/x
  3. Step 3: Cross multiply
    493,775.55x = 740,219.85 × 194,460.30
  4. Step 4: Simplify right side
    493,775.55x = 143,943,374,096.96
  5. Step 5: Solve for x
    x = 143,943,374,096.96/493,775.55
  6. Step 6: Final answer
    x = 291,515.80

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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.