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Finding the Fourth Proportional to 656,413.30, 984,619.95 and 157,777.30

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Solution

The fourth proportional to 656,413.30, 984,619.95 and 157,777.30 is: 236,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,413.30 : 984,619.95 = 157,777.30 : x
  2. Step 2: Convert to fraction form
    656,413.30/984,619.95 = 157,777.30/x
  3. Step 3: Cross multiply
    656,413.30x = 984,619.95 × 157,777.30
  4. Step 4: Simplify right side
    656,413.30x = 155,350,677,237.14
  5. Step 5: Solve for x
    x = 155,350,677,237.14/656,413.30
  6. Step 6: Final answer
    x = 236,665.95

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Double scale
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Similar ratio
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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.