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Finding the Fourth Proportional to 639,091.35, 954,893.34 and 616,740.89

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Solution

The fourth proportional to 639,091.35, 954,893.34 and 616,740.89 is: 921,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,091.35 : 954,893.34 = 616,740.89 : x
  2. Step 2: Convert to fraction form
    639,091.35/954,893.34 = 616,740.89/x
  3. Step 3: Cross multiply
    639,091.35x = 954,893.34 × 616,740.89
  4. Step 4: Simplify right side
    639,091.35x = 588,921,763,592.21
  5. Step 5: Solve for x
    x = 588,921,763,592.21/639,091.35
  6. Step 6: Final answer
    x = 921,498.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.