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Finding the Fourth Proportional to 451,878.84, 623,571.75 and 247,925.16

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Solution

The fourth proportional to 451,878.84, 623,571.75 and 247,925.16 is: 342,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,878.84 : 623,571.75 = 247,925.16 : x
  2. Step 2: Convert to fraction form
    451,878.84/623,571.75 = 247,925.16/x
  3. Step 3: Cross multiply
    451,878.84x = 623,571.75 × 247,925.16
  4. Step 4: Simplify right side
    451,878.84x = 154,599,125,890.23
  5. Step 5: Solve for x
    x = 154,599,125,890.23/451,878.84
  6. Step 6: Final answer
    x = 342,125.17

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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.