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Finding the Fourth Proportional to 1,570,736.40, 2,355,413.40 and 623,792.40

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Solution

The fourth proportional to 1,570,736.40, 2,355,413.40 and 623,792.40 is: 935,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,736.40 : 2,355,413.40 = 623,792.40 : x
  2. Step 2: Convert to fraction form
    1,570,736.40/2,355,413.40 = 623,792.40/x
  3. Step 3: Cross multiply
    1,570,736.40x = 2,355,413.40 × 623,792.40
  4. Step 4: Simplify right side
    1,570,736.40x = 1,469,288,977,778.16
  5. Step 5: Solve for x
    x = 1,469,288,977,778.16/1,570,736.40
  6. Step 6: Final answer
    x = 935,414.10

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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.