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Finding the Fourth Proportional to 663,048.80, 994,573.20 and 451,541.60

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Solution

The fourth proportional to 663,048.80, 994,573.20 and 451,541.60 is: 677,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,048.80 : 994,573.20 = 451,541.60 : x
  2. Step 2: Convert to fraction form
    663,048.80/994,573.20 = 451,541.60/x
  3. Step 3: Cross multiply
    663,048.80x = 994,573.20 × 451,541.60
  4. Step 4: Simplify right side
    663,048.80x = 449,091,174,045.12
  5. Step 5: Solve for x
    x = 449,091,174,045.12/663,048.80
  6. Step 6: Final answer
    x = 677,312.40

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Double scale
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Similar ratio
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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.