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Finding the Fourth Proportional to 314,900.60, 434,562.91 and 178,934.67

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Solution

The fourth proportional to 314,900.60, 434,562.91 and 178,934.67 is: 246,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,900.60 : 434,562.91 = 178,934.67 : x
  2. Step 2: Convert to fraction form
    314,900.60/434,562.91 = 178,934.67/x
  3. Step 3: Cross multiply
    314,900.60x = 434,562.91 × 178,934.67
  4. Step 4: Simplify right side
    314,900.60x = 77,758,370,447.75
  5. Step 5: Solve for x
    x = 77,758,370,447.75/314,900.60
  6. Step 6: Final answer
    x = 246,929.89

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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.