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Finding the Fourth Proportional to 293,486.40, 440,402.40 and 106,516.80

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Solution

The fourth proportional to 293,486.40, 440,402.40 and 106,516.80 is: 159,837.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,486.40 : 440,402.40 = 106,516.80 : x
  2. Step 2: Convert to fraction form
    293,486.40/440,402.40 = 106,516.80/x
  3. Step 3: Cross multiply
    293,486.40x = 440,402.40 × 106,516.80
  4. Step 4: Simplify right side
    293,486.40x = 46,910,254,360.32
  5. Step 5: Solve for x
    x = 46,910,254,360.32/293,486.40
  6. Step 6: Final answer
    x = 159,837.92

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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.