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Finding the Fourth Proportional to 530,958.40, 796,437.60 and 156,981.40

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Solution

The fourth proportional to 530,958.40, 796,437.60 and 156,981.40 is: 235,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,958.40 : 796,437.60 = 156,981.40 : x
  2. Step 2: Convert to fraction form
    530,958.40/796,437.60 = 156,981.40/x
  3. Step 3: Cross multiply
    530,958.40x = 796,437.60 × 156,981.40
  4. Step 4: Simplify right side
    530,958.40x = 125,025,889,460.64
  5. Step 5: Solve for x
    x = 125,025,889,460.64/530,958.40
  6. Step 6: Final answer
    x = 235,472.10

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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.