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Finding the Fourth Proportional to 440,521.35, 617,974.05 and 440,521.35

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Solution

The fourth proportional to 440,521.35, 617,974.05 and 440,521.35 is: 617,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,521.35 : 617,974.05 = 440,521.35 : x
  2. Step 2: Convert to fraction form
    440,521.35/617,974.05 = 440,521.35/x
  3. Step 3: Cross multiply
    440,521.35x = 617,974.05 × 440,521.35
  4. Step 4: Simplify right side
    440,521.35x = 272,230,762,770.97
  5. Step 5: Solve for x
    x = 272,230,762,770.97/440,521.35
  6. Step 6: Final answer
    x = 617,974.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.