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Finding the Fourth Proportional to 316,666.16, 436,999.98 and 171,473.54

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Solution

The fourth proportional to 316,666.16, 436,999.98 and 171,473.54 is: 236,633.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,666.16 : 436,999.98 = 171,473.54 : x
  2. Step 2: Convert to fraction form
    316,666.16/436,999.98 = 171,473.54/x
  3. Step 3: Cross multiply
    316,666.16x = 436,999.98 × 171,473.54
  4. Step 4: Simplify right side
    316,666.16x = 74,933,933,550.53
  5. Step 5: Solve for x
    x = 74,933,933,550.53/316,666.16
  6. Step 6: Final answer
    x = 236,633.85

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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.