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Finding the Fourth Proportional to 450,216.40, 675,324.60 and 117,792.40

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Solution

The fourth proportional to 450,216.40, 675,324.60 and 117,792.40 is: 176,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,216.40 : 675,324.60 = 117,792.40 : x
  2. Step 2: Convert to fraction form
    450,216.40/675,324.60 = 117,792.40/x
  3. Step 3: Cross multiply
    450,216.40x = 675,324.60 × 117,792.40
  4. Step 4: Simplify right side
    450,216.40x = 79,548,105,413.04
  5. Step 5: Solve for x
    x = 79,548,105,413.04/450,216.40
  6. Step 6: Final answer
    x = 176,688.60

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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.