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Finding the Fourth Proportional to 674,493.86, 930,803.96 and 368,570.26

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Solution

The fourth proportional to 674,493.86, 930,803.96 and 368,570.26 is: 508,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,493.86 : 930,803.96 = 368,570.26 : x
  2. Step 2: Convert to fraction form
    674,493.86/930,803.96 = 368,570.26/x
  3. Step 3: Cross multiply
    674,493.86x = 930,803.96 × 368,570.26
  4. Step 4: Simplify right side
    674,493.86x = 343,066,652,892.21
  5. Step 5: Solve for x
    x = 343,066,652,892.21/674,493.86
  6. Step 6: Final answer
    x = 508,628.29

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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.