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Finding the Fourth Proportional to 672,264, 927,724.32 and 370,458

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Solution

The fourth proportional to 672,264, 927,724.32 and 370,458 is: 511,232.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,264 : 927,724.32 = 370,458 : x
  2. Step 2: Convert to fraction form
    672,264/927,724.32 = 370,458/x
  3. Step 3: Cross multiply
    672,264x = 927,724.32 × 370,458
  4. Step 4: Simplify right side
    672,264x = 343,682,896,138.56
  5. Step 5: Solve for x
    x = 343,682,896,138.56/672,264
  6. Step 6: Final answer
    x = 511,232.04

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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.