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Finding the Fourth Proportional to 372,894.15, 514,374.13 and 263,875.84

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Solution

The fourth proportional to 372,894.15, 514,374.13 and 263,875.84 is: 363,993.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,894.15 : 514,374.13 = 263,875.84 : x
  2. Step 2: Convert to fraction form
    372,894.15/514,374.13 = 263,875.84/x
  3. Step 3: Cross multiply
    372,894.15x = 514,374.13 × 263,875.84
  4. Step 4: Simplify right side
    372,894.15x = 135,730,905,628.02
  5. Step 5: Solve for x
    x = 135,730,905,628.02/372,894.15
  6. Step 6: Final answer
    x = 363,993.12

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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.