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Finding the Fourth Proportional to 657,072.60, 985,608.90 and 590,717.40

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Solution

The fourth proportional to 657,072.60, 985,608.90 and 590,717.40 is: 886,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,072.60 : 985,608.90 = 590,717.40 : x
  2. Step 2: Convert to fraction form
    657,072.60/985,608.90 = 590,717.40/x
  3. Step 3: Cross multiply
    657,072.60x = 985,608.90 × 590,717.40
  4. Step 4: Simplify right side
    657,072.60x = 582,216,326,824.86
  5. Step 5: Solve for x
    x = 582,216,326,824.86/657,072.60
  6. Step 6: Final answer
    x = 886,076.10

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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.