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Finding the Fourth Proportional to 316,592.35, 436,898.15 and 171,399.66

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Solution

The fourth proportional to 316,592.35, 436,898.15 and 171,399.66 is: 236,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,592.35 : 436,898.15 = 171,399.66 : x
  2. Step 2: Convert to fraction form
    316,592.35/436,898.15 = 171,399.66/x
  3. Step 3: Cross multiply
    316,592.35x = 436,898.15 × 171,399.66
  4. Step 4: Simplify right side
    316,592.35x = 74,884,193,507.63
  5. Step 5: Solve for x
    x = 74,884,193,507.63/316,592.35
  6. Step 6: Final answer
    x = 236,531.91

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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.