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Finding the Fourth Proportional to 1,807,978.80, 2,711,881.80 and 609,783.60

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Solution

The fourth proportional to 1,807,978.80, 2,711,881.80 and 609,783.60 is: 914,646.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807,978.80 : 2,711,881.80 = 609,783.60 : x
  2. Step 2: Convert to fraction form
    1,807,978.80/2,711,881.80 = 609,783.60/x
  3. Step 3: Cross multiply
    1,807,978.80x = 2,711,881.80 × 609,783.60
  4. Step 4: Simplify right side
    1,807,978.80x = 1,653,661,046,778.48
  5. Step 5: Solve for x
    x = 1,653,661,046,778.48/1,807,978.80
  6. Step 6: Final answer
    x = 914,646.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.