Home / 857,380.62-1,183,238.43-475,407.40

Finding the Fourth Proportional to 857,380.62, 1,183,238.43 and 475,407.40

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Solution

The fourth proportional to 857,380.62, 1,183,238.43 and 475,407.40 is: 656,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,380.62 : 1,183,238.43 = 475,407.40 : x
  2. Step 2: Convert to fraction form
    857,380.62/1,183,238.43 = 475,407.40/x
  3. Step 3: Cross multiply
    857,380.62x = 1,183,238.43 × 475,407.40
  4. Step 4: Simplify right side
    857,380.62x = 562,520,299,670.19
  5. Step 5: Solve for x
    x = 562,520,299,670.19/857,380.62
  6. Step 6: Final answer
    x = 656,091.69

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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.