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Finding the Fourth Proportional to 293,614.40, 440,421.60 and 83,259.20

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Solution

The fourth proportional to 293,614.40, 440,421.60 and 83,259.20 is: 124,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,614.40 : 440,421.60 = 83,259.20 : x
  2. Step 2: Convert to fraction form
    293,614.40/440,421.60 = 83,259.20/x
  3. Step 3: Cross multiply
    293,614.40x = 440,421.60 × 83,259.20
  4. Step 4: Simplify right side
    293,614.40x = 36,669,150,078.72
  5. Step 5: Solve for x
    x = 36,669,150,078.72/293,614.40
  6. Step 6: Final answer
    x = 124,888.80

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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.