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Finding the Fourth Proportional to 8,755,408.40, 13,122,053.40 and 4,258,000.40

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Solution

The fourth proportional to 8,755,408.40, 13,122,053.40 and 4,258,000.40 is: 6,381,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755,408.40 : 13,122,053.40 = 4,258,000.40 : x
  2. Step 2: Convert to fraction form
    8,755,408.40/13,122,053.40 = 4,258,000.40/x
  3. Step 3: Cross multiply
    8,755,408.40x = 13,122,053.40 × 4,258,000.40
  4. Step 4: Simplify right side
    8,755,408.40x = 55,873,708,626,021.37
  5. Step 5: Solve for x
    x = 55,873,708,626,021.37/8,755,408.40
  6. Step 6: Final answer
    x = 6,381,622.20

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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.