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Finding the Fourth Proportional to 415,798.73, 623,775.03 and 131,560.83

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Solution

The fourth proportional to 415,798.73, 623,775.03 and 131,560.83 is: 197,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,798.73 : 623,775.03 = 131,560.83 : x
  2. Step 2: Convert to fraction form
    415,798.73/623,775.03 = 131,560.83/x
  3. Step 3: Cross multiply
    415,798.73x = 623,775.03 × 131,560.83
  4. Step 4: Simplify right side
    415,798.73x = 82,064,360,680.07
  5. Step 5: Solve for x
    x = 82,064,360,680.07/415,798.73
  6. Step 6: Final answer
    x = 197,365.59

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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.