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Finding the Fourth Proportional to 4,786,776.89, 7,169,609.41 and 3,956,688.89

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Solution

The fourth proportional to 4,786,776.89, 7,169,609.41 and 3,956,688.89 is: 5,926,307.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786,776.89 : 7,169,609.41 = 3,956,688.89 : x
  2. Step 2: Convert to fraction form
    4,786,776.89/7,169,609.41 = 3,956,688.89/x
  3. Step 3: Cross multiply
    4,786,776.89x = 7,169,609.41 × 3,956,688.89
  4. Step 4: Simplify right side
    4,786,776.89x = 28,367,913,898,186.46
  5. Step 5: Solve for x
    x = 28,367,913,898,186.46/4,786,776.89
  6. Step 6: Final answer
    x = 5,926,307.94

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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.