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Finding the Fourth Proportional to 400,004.80, 600,007.20 and 367,345.60

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Solution

The fourth proportional to 400,004.80, 600,007.20 and 367,345.60 is: 551,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,004.80 : 600,007.20 = 367,345.60 : x
  2. Step 2: Convert to fraction form
    400,004.80/600,007.20 = 367,345.60/x
  3. Step 3: Cross multiply
    400,004.80x = 600,007.20 × 367,345.60
  4. Step 4: Simplify right side
    400,004.80x = 220,410,004,888.32
  5. Step 5: Solve for x
    x = 220,410,004,888.32/400,004.80
  6. Step 6: Final answer
    x = 551,018.40

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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.