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Finding the Fourth Proportional to 651,707.40, 978,435.90 and 416,094.60

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Solution

The fourth proportional to 651,707.40, 978,435.90 and 416,094.60 is: 624,700.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,707.40 : 978,435.90 = 416,094.60 : x
  2. Step 2: Convert to fraction form
    651,707.40/978,435.90 = 416,094.60/x
  3. Step 3: Cross multiply
    651,707.40x = 978,435.90 × 416,094.60
  4. Step 4: Simplify right side
    651,707.40x = 407,121,894,436.14
  5. Step 5: Solve for x
    x = 407,121,894,436.14/651,707.40
  6. Step 6: Final answer
    x = 624,700.43

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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.