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Finding the Fourth Proportional to 316,285.53, 436,484.93 and 173,045.58

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Solution

The fourth proportional to 316,285.53, 436,484.93 and 173,045.58 is: 238,808.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,285.53 : 436,484.93 = 173,045.58 : x
  2. Step 2: Convert to fraction form
    316,285.53/436,484.93 = 173,045.58/x
  3. Step 3: Cross multiply
    316,285.53x = 436,484.93 × 173,045.58
  4. Step 4: Simplify right side
    316,285.53x = 75,531,784,825.46
  5. Step 5: Solve for x
    x = 75,531,784,825.46/316,285.53
  6. Step 6: Final answer
    x = 238,808.86

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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.