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Finding the Fourth Proportional to 468,360.81, 646,342.62 and 253,505.46

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Solution

The fourth proportional to 468,360.81, 646,342.62 and 253,505.46 is: 349,840.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,360.81 : 646,342.62 = 253,505.46 : x
  2. Step 2: Convert to fraction form
    468,360.81/646,342.62 = 253,505.46/x
  3. Step 3: Cross multiply
    468,360.81x = 646,342.62 × 253,505.46
  4. Step 4: Simplify right side
    468,360.81x = 163,851,383,200.71
  5. Step 5: Solve for x
    x = 163,851,383,200.71/468,360.81
  6. Step 6: Final answer
    x = 349,840.08

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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.