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Finding the Fourth Proportional to 468,642.88, 646,727.52 and 253,783.18

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Solution

The fourth proportional to 468,642.88, 646,727.52 and 253,783.18 is: 350,220.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,642.88 : 646,727.52 = 253,783.18 : x
  2. Step 2: Convert to fraction form
    468,642.88/646,727.52 = 253,783.18/x
  3. Step 3: Cross multiply
    468,642.88x = 646,727.52 × 253,783.18
  4. Step 4: Simplify right side
    468,642.88x = 164,128,566,619.11
  5. Step 5: Solve for x
    x = 164,128,566,619.11/468,642.88
  6. Step 6: Final answer
    x = 350,220.98

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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.