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Finding the Fourth Proportional to 411,336.80, 616,544.40 and 233,928.80

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Solution

The fourth proportional to 411,336.80, 616,544.40 and 233,928.80 is: 350,631.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,336.80 : 616,544.40 = 233,928.80 : x
  2. Step 2: Convert to fraction form
    411,336.80/616,544.40 = 233,928.80/x
  3. Step 3: Cross multiply
    411,336.80x = 616,544.40 × 233,928.80
  4. Step 4: Simplify right side
    411,336.80x = 144,227,491,638.72
  5. Step 5: Solve for x
    x = 144,227,491,638.72/411,336.80
  6. Step 6: Final answer
    x = 350,631.14

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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.