Home / 861,327.48-1,188,620.32-479,354.16

Finding the Fourth Proportional to 861,327.48, 1,188,620.32 and 479,354.16

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Solution

The fourth proportional to 861,327.48, 1,188,620.32 and 479,354.16 is: 661,502.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,327.48 : 1,188,620.32 = 479,354.16 : x
  2. Step 2: Convert to fraction form
    861,327.48/1,188,620.32 = 479,354.16/x
  3. Step 3: Cross multiply
    861,327.48x = 1,188,620.32 × 479,354.16
  4. Step 4: Simplify right side
    861,327.48x = 569,770,095,052.53
  5. Step 5: Solve for x
    x = 569,770,095,052.53/861,327.48
  6. Step 6: Final answer
    x = 661,502.28

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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.