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Finding the Fourth Proportional to 5,868,809.20, 8,803,213.80 and 1,608,970.60

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Solution

The fourth proportional to 5,868,809.20, 8,803,213.80 and 1,608,970.60 is: 2,413,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,868,809.20 : 8,803,213.80 = 1,608,970.60 : x
  2. Step 2: Convert to fraction form
    5,868,809.20/8,803,213.80 = 1,608,970.60/x
  3. Step 3: Cross multiply
    5,868,809.20x = 8,803,213.80 × 1,608,970.60
  4. Step 4: Simplify right side
    5,868,809.20x = 14,164,112,189,714.28
  5. Step 5: Solve for x
    x = 14,164,112,189,714.28/5,868,809.20
  6. Step 6: Final answer
    x = 2,413,455.90

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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.