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Finding the Fourth Proportional to 637,658.65, 956,262.25 and 188,259.31

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Solution

The fourth proportional to 637,658.65, 956,262.25 and 188,259.31 is: 282,322.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,658.65 : 956,262.25 = 188,259.31 : x
  2. Step 2: Convert to fraction form
    637,658.65/956,262.25 = 188,259.31/x
  3. Step 3: Cross multiply
    637,658.65x = 956,262.25 × 188,259.31
  4. Step 4: Simplify right side
    637,658.65x = 180,025,271,364.05
  5. Step 5: Solve for x
    x = 180,025,271,364.05/637,658.65
  6. Step 6: Final answer
    x = 282,322.32

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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.