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Finding the Fourth Proportional to 434,576.80, 651,865.20 and 222,000.40

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Solution

The fourth proportional to 434,576.80, 651,865.20 and 222,000.40 is: 333,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,576.80 : 651,865.20 = 222,000.40 : x
  2. Step 2: Convert to fraction form
    434,576.80/651,865.20 = 222,000.40/x
  3. Step 3: Cross multiply
    434,576.80x = 651,865.20 × 222,000.40
  4. Step 4: Simplify right side
    434,576.80x = 144,714,335,146.08
  5. Step 5: Solve for x
    x = 144,714,335,146.08/434,576.80
  6. Step 6: Final answer
    x = 333,000.60

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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.