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Finding the Fourth Proportional to 376,653.95, 519,426.62 and 247,364.58

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Solution

The fourth proportional to 376,653.95, 519,426.62 and 247,364.58 is: 341,129.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,653.95 : 519,426.62 = 247,364.58 : x
  2. Step 2: Convert to fraction form
    376,653.95/519,426.62 = 247,364.58/x
  3. Step 3: Cross multiply
    376,653.95x = 519,426.62 × 247,364.58
  4. Step 4: Simplify right side
    376,653.95x = 128,487,750,727.19
  5. Step 5: Solve for x
    x = 128,487,750,727.19/376,653.95
  6. Step 6: Final answer
    x = 341,129.44

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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.