Home / 313,188.10-469,779.89-76,528.60

Finding the Fourth Proportional to 313,188.10, 469,779.89 and 76,528.60

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Solution

The fourth proportional to 313,188.10, 469,779.89 and 76,528.60 is: 114,792.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,188.10 : 469,779.89 = 76,528.60 : x
  2. Step 2: Convert to fraction form
    313,188.10/469,779.89 = 76,528.60/x
  3. Step 3: Cross multiply
    313,188.10x = 469,779.89 × 76,528.60
  4. Step 4: Simplify right side
    313,188.10x = 35,951,597,289.85
  5. Step 5: Solve for x
    x = 35,951,597,289.85/313,188.10
  6. Step 6: Final answer
    x = 114,792.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.