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Finding the Fourth Proportional to 406,048.40, 609,072.60 and 248,584.40

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Solution

The fourth proportional to 406,048.40, 609,072.60 and 248,584.40 is: 372,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,048.40 : 609,072.60 = 248,584.40 : x
  2. Step 2: Convert to fraction form
    406,048.40/609,072.60 = 248,584.40/x
  3. Step 3: Cross multiply
    406,048.40x = 609,072.60 × 248,584.40
  4. Step 4: Simplify right side
    406,048.40x = 151,405,946,827.44
  5. Step 5: Solve for x
    x = 151,405,946,827.44/406,048.40
  6. Step 6: Final answer
    x = 372,876.60

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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.