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Finding the Fourth Proportional to 313,658.92, 432,800.58 and 186,331.24

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Solution

The fourth proportional to 313,658.92, 432,800.58 and 186,331.24 is: 257,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,658.92 : 432,800.58 = 186,331.24 : x
  2. Step 2: Convert to fraction form
    313,658.92/432,800.58 = 186,331.24/x
  3. Step 3: Cross multiply
    313,658.92x = 432,800.58 × 186,331.24
  4. Step 4: Simplify right side
    313,658.92x = 80,644,268,744.12
  5. Step 5: Solve for x
    x = 80,644,268,744.12/313,658.92
  6. Step 6: Final answer
    x = 257,108.16

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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.