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Finding the Fourth Proportional to 5,909,999.90, 8,865,001.46 and 1,422,275.90

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Solution

The fourth proportional to 5,909,999.90, 8,865,001.46 and 1,422,275.90 is: 2,133,414.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909,999.90 : 8,865,001.46 = 1,422,275.90 : x
  2. Step 2: Convert to fraction form
    5,909,999.90/8,865,001.46 = 1,422,275.90/x
  3. Step 3: Cross multiply
    5,909,999.90x = 8,865,001.46 × 1,422,275.90
  4. Step 4: Simplify right side
    5,909,999.90x = 12,608,477,889,253.50
  5. Step 5: Solve for x
    x = 12,608,477,889,253.50/5,909,999.90
  6. Step 6: Final answer
    x = 2,133,414.23

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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.