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Finding the Fourth Proportional to 509,512.60, 764,341.80 and 154,554.40

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Solution

The fourth proportional to 509,512.60, 764,341.80 and 154,554.40 is: 231,853.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,512.60 : 764,341.80 = 154,554.40 : x
  2. Step 2: Convert to fraction form
    509,512.60/764,341.80 = 154,554.40/x
  3. Step 3: Cross multiply
    509,512.60x = 764,341.80 × 154,554.40
  4. Step 4: Simplify right side
    509,512.60x = 118,132,388,293.92
  5. Step 5: Solve for x
    x = 118,132,388,293.92/509,512.60
  6. Step 6: Final answer
    x = 231,853.71

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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.