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Finding the Fourth Proportional to 622,359.60, 933,539.40 and 408,548.40

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Solution

The fourth proportional to 622,359.60, 933,539.40 and 408,548.40 is: 612,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,359.60 : 933,539.40 = 408,548.40 : x
  2. Step 2: Convert to fraction form
    622,359.60/933,539.40 = 408,548.40/x
  3. Step 3: Cross multiply
    622,359.60x = 933,539.40 × 408,548.40
  4. Step 4: Simplify right side
    622,359.60x = 381,396,028,206.96
  5. Step 5: Solve for x
    x = 381,396,028,206.96/622,359.60
  6. Step 6: Final answer
    x = 612,822.60

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1.5x scale

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.