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Finding the Fourth Proportional to 217,413.60, 304,932 and 217,413.60

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Solution

The fourth proportional to 217,413.60, 304,932 and 217,413.60 is: 304,932

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,413.60 : 304,932 = 217,413.60 : x
  2. Step 2: Convert to fraction form
    217,413.60/304,932 = 217,413.60/x
  3. Step 3: Cross multiply
    217,413.60x = 304,932 × 217,413.60
  4. Step 4: Simplify right side
    217,413.60x = 66,296,363,875.20
  5. Step 5: Solve for x
    x = 66,296,363,875.20/217,413.60
  6. Step 6: Final answer
    x = 304,932

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.