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Finding the Fourth Proportional to 344,407.32, 475,287.80 and 189,365.16

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Solution

The fourth proportional to 344,407.32, 475,287.80 and 189,365.16 is: 261,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,407.32 : 475,287.80 = 189,365.16 : x
  2. Step 2: Convert to fraction form
    344,407.32/475,287.80 = 189,365.16/x
  3. Step 3: Cross multiply
    344,407.32x = 475,287.80 × 189,365.16
  4. Step 4: Simplify right side
    344,407.32x = 90,002,949,346.22
  5. Step 5: Solve for x
    x = 90,002,949,346.22/344,407.32
  6. Step 6: Final answer
    x = 261,327.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.