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Finding the Fourth Proportional to 537,312.34, 805,902.36 and 221,728.24

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Solution

The fourth proportional to 537,312.34, 805,902.36 and 221,728.24 is: 332,565.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,312.34 : 805,902.36 = 221,728.24 : x
  2. Step 2: Convert to fraction form
    537,312.34/805,902.36 = 221,728.24/x
  3. Step 3: Cross multiply
    537,312.34x = 805,902.36 × 221,728.24
  4. Step 4: Simplify right side
    537,312.34x = 178,691,311,894.65
  5. Step 5: Solve for x
    x = 178,691,311,894.65/537,312.34
  6. Step 6: Final answer
    x = 332,565.06

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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.