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Finding the Fourth Proportional to 613,296.32, 919,940.16 and 170,064.32

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Solution

The fourth proportional to 613,296.32, 919,940.16 and 170,064.32 is: 255,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,296.32 : 919,940.16 = 170,064.32 : x
  2. Step 2: Convert to fraction form
    613,296.32/919,940.16 = 170,064.32/x
  3. Step 3: Cross multiply
    613,296.32x = 919,940.16 × 170,064.32
  4. Step 4: Simplify right side
    613,296.32x = 156,448,997,751.09
  5. Step 5: Solve for x
    x = 156,448,997,751.09/613,296.32
  6. Step 6: Final answer
    x = 255,095.28

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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.