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Finding the Fourth Proportional to 468,087.84, 645,959.28 and 253,227.40

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Solution

The fourth proportional to 468,087.84, 645,959.28 and 253,227.40 is: 349,452.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,087.84 : 645,959.28 = 253,227.40 : x
  2. Step 2: Convert to fraction form
    468,087.84/645,959.28 = 253,227.40/x
  3. Step 3: Cross multiply
    468,087.84x = 645,959.28 × 253,227.40
  4. Step 4: Simplify right side
    468,087.84x = 163,574,588,980.27
  5. Step 5: Solve for x
    x = 163,574,588,980.27/468,087.84
  6. Step 6: Final answer
    x = 349,452.76

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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.