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Finding the Fourth Proportional to 630,653.60, 945,980.40 and 441,696.80

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Solution

The fourth proportional to 630,653.60, 945,980.40 and 441,696.80 is: 662,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,653.60 : 945,980.40 = 441,696.80 : x
  2. Step 2: Convert to fraction form
    630,653.60/945,980.40 = 441,696.80/x
  3. Step 3: Cross multiply
    630,653.60x = 945,980.40 × 441,696.80
  4. Step 4: Simplify right side
    630,653.60x = 417,836,515,542.72
  5. Step 5: Solve for x
    x = 417,836,515,542.72/630,653.60
  6. Step 6: Final answer
    x = 662,545.20

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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.