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Finding the Fourth Proportional to 1,888,828.35, 2,831,698.67 and 878,580.15

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Solution

The fourth proportional to 1,888,828.35, 2,831,698.67 and 878,580.15 is: 1,317,152.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,828.35 : 2,831,698.67 = 878,580.15 : x
  2. Step 2: Convert to fraction form
    1,888,828.35/2,831,698.67 = 878,580.15/x
  3. Step 3: Cross multiply
    1,888,828.35x = 2,831,698.67 × 878,580.15
  4. Step 4: Simplify right side
    1,888,828.35x = 2,487,874,237,850.50
  5. Step 5: Solve for x
    x = 2,487,874,237,850.50/1,888,828.35
  6. Step 6: Final answer
    x = 1,317,152.11

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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.