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Finding the Fourth Proportional to 6,409,698.48, 8,845,385.90 and 3,509,273.57

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Solution

The fourth proportional to 6,409,698.48, 8,845,385.90 and 3,509,273.57 is: 4,842,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409,698.48 : 8,845,385.90 = 3,509,273.57 : x
  2. Step 2: Convert to fraction form
    6,409,698.48/8,845,385.90 = 3,509,273.57/x
  3. Step 3: Cross multiply
    6,409,698.48x = 8,845,385.90 × 3,509,273.57
  4. Step 4: Simplify right side
    6,409,698.48x = 31,040,878,893,547.36
  5. Step 5: Solve for x
    x = 31,040,878,893,547.36/6,409,698.48
  6. Step 6: Final answer
    x = 4,842,798.61

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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.