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Finding the Fourth Proportional to 459,526.80, 688,512.60 and 222,358.80

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Solution

The fourth proportional to 459,526.80, 688,512.60 and 222,358.80 is: 333,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,526.80 : 688,512.60 = 222,358.80 : x
  2. Step 2: Convert to fraction form
    459,526.80/688,512.60 = 222,358.80/x
  3. Step 3: Cross multiply
    459,526.80x = 688,512.60 × 222,358.80
  4. Step 4: Simplify right side
    459,526.80x = 153,096,835,520.88
  5. Step 5: Solve for x
    x = 153,096,835,520.88/459,526.80
  6. Step 6: Final answer
    x = 333,161.93

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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.