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Finding the Fourth Proportional to 458,783.35, 688,181.95 and 159,273.45

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Solution

The fourth proportional to 458,783.35, 688,181.95 and 159,273.45 is: 238,912.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,783.35 : 688,181.95 = 159,273.45 : x
  2. Step 2: Convert to fraction form
    458,783.35/688,181.95 = 159,273.45/x
  3. Step 3: Cross multiply
    458,783.35x = 688,181.95 × 159,273.45
  4. Step 4: Simplify right side
    458,783.35x = 109,609,112,635.56
  5. Step 5: Solve for x
    x = 109,609,112,635.56/458,783.35
  6. Step 6: Final answer
    x = 238,912.58

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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.