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Finding the Fourth Proportional to 293,638.20, 440,486.40 and 93,908.40

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Solution

The fourth proportional to 293,638.20, 440,486.40 and 93,908.40 is: 140,871.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,638.20 : 440,486.40 = 93,908.40 : x
  2. Step 2: Convert to fraction form
    293,638.20/440,486.40 = 93,908.40/x
  3. Step 3: Cross multiply
    293,638.20x = 440,486.40 × 93,908.40
  4. Step 4: Simplify right side
    293,638.20x = 41,365,373,045.76
  5. Step 5: Solve for x
    x = 41,365,373,045.76/293,638.20
  6. Step 6: Final answer
    x = 140,871.91

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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.