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Finding the Fourth Proportional to 294,086.40, 441,421.20 and 144,495.60

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Solution

The fourth proportional to 294,086.40, 441,421.20 and 144,495.60 is: 216,886.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,086.40 : 441,421.20 = 144,495.60 : x
  2. Step 2: Convert to fraction form
    294,086.40/441,421.20 = 144,495.60/x
  3. Step 3: Cross multiply
    294,086.40x = 441,421.20 × 144,495.60
  4. Step 4: Simplify right side
    294,086.40x = 63,783,421,146.72
  5. Step 5: Solve for x
    x = 63,783,421,146.72/294,086.40
  6. Step 6: Final answer
    x = 216,886.67

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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.