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Finding the Fourth Proportional to 6,415,547.88, 8,853,455.88 and 3,515,048.58

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Solution

The fourth proportional to 6,415,547.88, 8,853,455.88 and 3,515,048.58 is: 4,850,766.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415,547.88 : 8,853,455.88 = 3,515,048.58 : x
  2. Step 2: Convert to fraction form
    6,415,547.88/8,853,455.88 = 3,515,048.58/x
  3. Step 3: Cross multiply
    6,415,547.88x = 8,853,455.88 × 3,515,048.58
  4. Step 4: Simplify right side
    6,415,547.88x = 31,120,327,519,086.65
  5. Step 5: Solve for x
    x = 31,120,327,519,086.65/6,415,547.88
  6. Step 6: Final answer
    x = 4,850,766.93

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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.