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Finding the Fourth Proportional to 316,497.58, 436,750.28 and 173,230.45

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Solution

The fourth proportional to 316,497.58, 436,750.28 and 173,230.45 is: 239,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,497.58 : 436,750.28 = 173,230.45 : x
  2. Step 2: Convert to fraction form
    316,497.58/436,750.28 = 173,230.45/x
  3. Step 3: Cross multiply
    316,497.58x = 436,750.28 × 173,230.45
  4. Step 4: Simplify right side
    316,497.58x = 75,658,446,233.61
  5. Step 5: Solve for x
    x = 75,658,446,233.61/316,497.58
  6. Step 6: Final answer
    x = 239,049.05

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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.