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Finding the Fourth Proportional to 468,083.84, 645,953.76 and 253,223.40

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Solution

The fourth proportional to 468,083.84, 645,953.76 and 253,223.40 is: 349,447.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,083.84 : 645,953.76 = 253,223.40 : x
  2. Step 2: Convert to fraction form
    468,083.84/645,953.76 = 253,223.40/x
  3. Step 3: Cross multiply
    468,083.84x = 645,953.76 × 253,223.40
  4. Step 4: Simplify right side
    468,083.84x = 163,570,607,349.98
  5. Step 5: Solve for x
    x = 163,570,607,349.98/468,083.84
  6. Step 6: Final answer
    x = 349,447.24

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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.