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Finding the Fourth Proportional to 1,234,644.60, 1,851,966.90 and 1,100,800.20

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Solution

The fourth proportional to 1,234,644.60, 1,851,966.90 and 1,100,800.20 is: 1,651,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,644.60 : 1,851,966.90 = 1,100,800.20 : x
  2. Step 2: Convert to fraction form
    1,234,644.60/1,851,966.90 = 1,100,800.20/x
  3. Step 3: Cross multiply
    1,234,644.60x = 1,851,966.90 × 1,100,800.20
  4. Step 4: Simplify right side
    1,234,644.60x = 2,038,645,533,913.38
  5. Step 5: Solve for x
    x = 2,038,645,533,913.38/1,234,644.60
  6. Step 6: Final answer
    x = 1,651,200.30

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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.