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Finding the Fourth Proportional to 425,326.02, 638,076.51 and 292,268.94

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Solution

The fourth proportional to 425,326.02, 638,076.51 and 292,268.94 is: 438,463.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,326.02 : 638,076.51 = 292,268.94 : x
  2. Step 2: Convert to fraction form
    425,326.02/638,076.51 = 292,268.94/x
  3. Step 3: Cross multiply
    425,326.02x = 638,076.51 × 292,268.94
  4. Step 4: Simplify right side
    425,326.02x = 186,489,945,216.60
  5. Step 5: Solve for x
    x = 186,489,945,216.60/425,326.02
  6. Step 6: Final answer
    x = 438,463.52

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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.