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Finding the Fourth Proportional to 440,353.05, 660,526.07 and 261,676.77

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Solution

The fourth proportional to 440,353.05, 660,526.07 and 261,676.77 is: 392,513.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,353.05 : 660,526.07 = 261,676.77 : x
  2. Step 2: Convert to fraction form
    440,353.05/660,526.07 = 261,676.77/x
  3. Step 3: Cross multiply
    440,353.05x = 660,526.07 × 261,676.77
  4. Step 4: Simplify right side
    440,353.05x = 172,844,328,498.39
  5. Step 5: Solve for x
    x = 172,844,328,498.39/440,353.05
  6. Step 6: Final answer
    x = 392,513.07

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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.