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Finding the Fourth Proportional to 522,867.70, 784,285.35 and 148,890.70

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Solution

The fourth proportional to 522,867.70, 784,285.35 and 148,890.70 is: 223,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,867.70 : 784,285.35 = 148,890.70 : x
  2. Step 2: Convert to fraction form
    522,867.70/784,285.35 = 148,890.70/x
  3. Step 3: Cross multiply
    522,867.70x = 784,285.35 × 148,890.70
  4. Step 4: Simplify right side
    522,867.70x = 116,772,794,761.25
  5. Step 5: Solve for x
    x = 116,772,794,761.25/522,867.70
  6. Step 6: Final answer
    x = 223,331.44

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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.