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Finding the Fourth Proportional to 316,444.80, 436,693.10 and 173,203.59

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Solution

The fourth proportional to 316,444.80, 436,693.10 and 173,203.59 is: 239,020.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,444.80 : 436,693.10 = 173,203.59 : x
  2. Step 2: Convert to fraction form
    316,444.80/436,693.10 = 173,203.59/x
  3. Step 3: Cross multiply
    316,444.80x = 436,693.10 × 173,203.59
  4. Step 4: Simplify right side
    316,444.80x = 75,636,811,782.21
  5. Step 5: Solve for x
    x = 75,636,811,782.21/316,444.80
  6. Step 6: Final answer
    x = 239,020.56

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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.