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Finding the Fourth Proportional to 469,955.61, 648,541.60 and 255,097.22

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Solution

The fourth proportional to 469,955.61, 648,541.60 and 255,097.22 is: 352,035.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,955.61 : 648,541.60 = 255,097.22 : x
  2. Step 2: Convert to fraction form
    469,955.61/648,541.60 = 255,097.22/x
  3. Step 3: Cross multiply
    469,955.61x = 648,541.60 × 255,097.22
  4. Step 4: Simplify right side
    469,955.61x = 165,441,155,333.90
  5. Step 5: Solve for x
    x = 165,441,155,333.90/469,955.61
  6. Step 6: Final answer
    x = 352,035.71

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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.