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Finding the Fourth Proportional to 617,650.16, 852,285.60 and 345,733.28

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Solution

The fourth proportional to 617,650.16, 852,285.60 and 345,733.28 is: 477,071.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,650.16 : 852,285.60 = 345,733.28 : x
  2. Step 2: Convert to fraction form
    617,650.16/852,285.60 = 345,733.28/x
  3. Step 3: Cross multiply
    617,650.16x = 852,285.60 × 345,733.28
  4. Step 4: Simplify right side
    617,650.16x = 294,663,495,984.77
  5. Step 5: Solve for x
    x = 294,663,495,984.77/617,650.16
  6. Step 6: Final answer
    x = 477,071.84

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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.