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Finding the Fourth Proportional to 648,879.42, 895,426.50 and 373,216.31

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Solution

The fourth proportional to 648,879.42, 895,426.50 and 373,216.31 is: 515,022.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,879.42 : 895,426.50 = 373,216.31 : x
  2. Step 2: Convert to fraction form
    648,879.42/895,426.50 = 373,216.31/x
  3. Step 3: Cross multiply
    648,879.42x = 895,426.50 × 373,216.31
  4. Step 4: Simplify right side
    648,879.42x = 334,187,772,387.15
  5. Step 5: Solve for x
    x = 334,187,772,387.15/648,879.42
  6. Step 6: Final answer
    x = 515,022.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.