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Finding the Fourth Proportional to 616,276.48, 850,501.20 and 361,534.72

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Solution

The fourth proportional to 616,276.48, 850,501.20 and 361,534.72 is: 498,941.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,276.48 : 850,501.20 = 361,534.72 : x
  2. Step 2: Convert to fraction form
    616,276.48/850,501.20 = 361,534.72/x
  3. Step 3: Cross multiply
    616,276.48x = 850,501.20 × 361,534.72
  4. Step 4: Simplify right side
    616,276.48x = 307,485,713,201.66
  5. Step 5: Solve for x
    x = 307,485,713,201.66/616,276.48
  6. Step 6: Final answer
    x = 498,941.18

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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.