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Finding the Fourth Proportional to 293,586.60, 440,379.90 and 243,766.20

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Solution

The fourth proportional to 293,586.60, 440,379.90 and 243,766.20 is: 365,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,586.60 : 440,379.90 = 243,766.20 : x
  2. Step 2: Convert to fraction form
    293,586.60/440,379.90 = 243,766.20/x
  3. Step 3: Cross multiply
    293,586.60x = 440,379.90 × 243,766.20
  4. Step 4: Simplify right side
    293,586.60x = 107,349,734,779.38
  5. Step 5: Solve for x
    x = 107,349,734,779.38/293,586.60
  6. Step 6: Final answer
    x = 365,649.30

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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.