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Finding the Fourth Proportional to 440,413.40, 617,408.20 and 440,413.40

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Solution

The fourth proportional to 440,413.40, 617,408.20 and 440,413.40 is: 617,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,413.40 : 617,408.20 = 440,413.40 : x
  2. Step 2: Convert to fraction form
    440,413.40/617,408.20 = 440,413.40/x
  3. Step 3: Cross multiply
    440,413.40x = 617,408.20 × 440,413.40
  4. Step 4: Simplify right side
    440,413.40x = 271,914,844,549.88
  5. Step 5: Solve for x
    x = 271,914,844,549.88/440,413.40
  6. Step 6: Final answer
    x = 617,408.20

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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.