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Finding the Fourth Proportional to 468,425.84, 646,429.88 and 253,566.08

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Solution

The fourth proportional to 468,425.84, 646,429.88 and 253,566.08 is: 349,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,425.84 : 646,429.88 = 253,566.08 : x
  2. Step 2: Convert to fraction form
    468,425.84/646,429.88 = 253,566.08/x
  3. Step 3: Cross multiply
    468,425.84x = 646,429.88 × 253,566.08
  4. Step 4: Simplify right side
    468,425.84x = 163,912,690,666.47
  5. Step 5: Solve for x
    x = 163,912,690,666.47/468,425.84
  6. Step 6: Final answer
    x = 349,922.39

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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.