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Finding the Fourth Proportional to 553,672.15, 830,442.61 and 179,695.15

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Solution

The fourth proportional to 553,672.15, 830,442.61 and 179,695.15 is: 269,521.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,672.15 : 830,442.61 = 179,695.15 : x
  2. Step 2: Convert to fraction form
    553,672.15/830,442.61 = 179,695.15/x
  3. Step 3: Cross multiply
    553,672.15x = 830,442.61 × 179,695.15
  4. Step 4: Simplify right side
    553,672.15x = 149,226,509,370.34
  5. Step 5: Solve for x
    x = 149,226,509,370.34/553,672.15
  6. Step 6: Final answer
    x = 269,521.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.