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Finding the Fourth Proportional to 430,172.54, 593,785.78 and 260,406.72

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Solution

The fourth proportional to 430,172.54, 593,785.78 and 260,406.72 is: 359,450.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,172.54 : 593,785.78 = 260,406.72 : x
  2. Step 2: Convert to fraction form
    430,172.54/593,785.78 = 260,406.72/x
  3. Step 3: Cross multiply
    430,172.54x = 593,785.78 × 260,406.72
  4. Step 4: Simplify right side
    430,172.54x = 154,625,807,352.44
  5. Step 5: Solve for x
    x = 154,625,807,352.44/430,172.54
  6. Step 6: Final answer
    x = 359,450.67

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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.