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Finding the Fourth Proportional to 366,970.60, 550,455.90 and 354,140.20

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Solution

The fourth proportional to 366,970.60, 550,455.90 and 354,140.20 is: 531,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,970.60 : 550,455.90 = 354,140.20 : x
  2. Step 2: Convert to fraction form
    366,970.60/550,455.90 = 354,140.20/x
  3. Step 3: Cross multiply
    366,970.60x = 550,455.90 × 354,140.20
  4. Step 4: Simplify right side
    366,970.60x = 194,938,562,517.18
  5. Step 5: Solve for x
    x = 194,938,562,517.18/366,970.60
  6. Step 6: Final answer
    x = 531,210.30

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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.