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Finding the Fourth Proportional to 616,348.72, 850,823.19 and 374,708.45

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Solution

The fourth proportional to 616,348.72, 850,823.19 and 374,708.45 is: 517,256.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,348.72 : 850,823.19 = 374,708.45 : x
  2. Step 2: Convert to fraction form
    616,348.72/850,823.19 = 374,708.45/x
  3. Step 3: Cross multiply
    616,348.72x = 850,823.19 × 374,708.45
  4. Step 4: Simplify right side
    616,348.72x = 318,810,638,748.96
  5. Step 5: Solve for x
    x = 318,810,638,748.96/616,348.72
  6. Step 6: Final answer
    x = 517,256.92

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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.