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Finding the Fourth Proportional to 400,048.80, 600,073.20 and 367,389.60

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Solution

The fourth proportional to 400,048.80, 600,073.20 and 367,389.60 is: 551,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,048.80 : 600,073.20 = 367,389.60 : x
  2. Step 2: Convert to fraction form
    400,048.80/600,073.20 = 367,389.60/x
  3. Step 3: Cross multiply
    400,048.80x = 600,073.20 × 367,389.60
  4. Step 4: Simplify right side
    400,048.80x = 220,460,652,918.72
  5. Step 5: Solve for x
    x = 220,460,652,918.72/400,048.80
  6. Step 6: Final answer
    x = 551,084.40

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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.