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Finding the Fourth Proportional to 637,804.40, 956,821.80 and 263,865.20

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Solution

The fourth proportional to 637,804.40, 956,821.80 and 263,865.20 is: 395,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,804.40 : 956,821.80 = 263,865.20 : x
  2. Step 2: Convert to fraction form
    637,804.40/956,821.80 = 263,865.20/x
  3. Step 3: Cross multiply
    637,804.40x = 956,821.80 × 263,865.20
  4. Step 4: Simplify right side
    637,804.40x = 252,471,975,621.36
  5. Step 5: Solve for x
    x = 252,471,975,621.36/637,804.40
  6. Step 6: Final answer
    x = 395,845.46

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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.