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Finding the Fourth Proportional to 6,423,829.44, 8,864,842.86 and 3,671,358.72

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Solution

The fourth proportional to 6,423,829.44, 8,864,842.86 and 3,671,358.72 is: 5,066,451.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423,829.44 : 8,864,842.86 = 3,671,358.72 : x
  2. Step 2: Convert to fraction form
    6,423,829.44/8,864,842.86 = 3,671,358.72/x
  3. Step 3: Cross multiply
    6,423,829.44x = 8,864,842.86 × 3,671,358.72
  4. Step 4: Simplify right side
    6,423,829.44x = 32,546,018,135,490.74
  5. Step 5: Solve for x
    x = 32,546,018,135,490.74/6,423,829.44
  6. Step 6: Final answer
    x = 5,066,451.16

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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.