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Finding the Fourth Proportional to 674,255.61, 930,431.61 and 368,270.01

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Solution

The fourth proportional to 674,255.61, 930,431.61 and 368,270.01 is: 508,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,255.61 : 930,431.61 = 368,270.01 : x
  2. Step 2: Convert to fraction form
    674,255.61/930,431.61 = 368,270.01/x
  3. Step 3: Cross multiply
    674,255.61x = 930,431.61 × 368,270.01
  4. Step 4: Simplify right side
    674,255.61x = 342,650,058,319.02
  5. Step 5: Solve for x
    x = 342,650,058,319.02/674,255.61
  6. Step 6: Final answer
    x = 508,190.15

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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.