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Finding the Fourth Proportional to 6,477,155.08, 8,935,245.54 and 3,861,814.66

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Solution

The fourth proportional to 6,477,155.08, 8,935,245.54 and 3,861,814.66 is: 5,327,379.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477,155.08 : 8,935,245.54 = 3,861,814.66 : x
  2. Step 2: Convert to fraction form
    6,477,155.08/8,935,245.54 = 3,861,814.66/x
  3. Step 3: Cross multiply
    6,477,155.08x = 8,935,245.54 × 3,861,814.66
  4. Step 4: Simplify right side
    6,477,155.08x = 34,506,262,194,733.50
  5. Step 5: Solve for x
    x = 34,506,262,194,733.50/6,477,155.08
  6. Step 6: Final answer
    x = 5,327,379.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.