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Finding the Fourth Proportional to 531,033.60, 796,550.40 and 342,076.80

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Solution

The fourth proportional to 531,033.60, 796,550.40 and 342,076.80 is: 513,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,033.60 : 796,550.40 = 342,076.80 : x
  2. Step 2: Convert to fraction form
    531,033.60/796,550.40 = 342,076.80/x
  3. Step 3: Cross multiply
    531,033.60x = 796,550.40 × 342,076.80
  4. Step 4: Simplify right side
    531,033.60x = 272,481,411,870.72
  5. Step 5: Solve for x
    x = 272,481,411,870.72/531,033.60
  6. Step 6: Final answer
    x = 513,115.20

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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.