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Finding the Fourth Proportional to 506,485.90, 759,774.62 and 146,651.50

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Solution

The fourth proportional to 506,485.90, 759,774.62 and 146,651.50 is: 219,990.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,485.90 : 759,774.62 = 146,651.50 : x
  2. Step 2: Convert to fraction form
    506,485.90/759,774.62 = 146,651.50/x
  3. Step 3: Cross multiply
    506,485.90x = 759,774.62 × 146,651.50
  4. Step 4: Simplify right side
    506,485.90x = 111,422,087,684.93
  5. Step 5: Solve for x
    x = 111,422,087,684.93/506,485.90
  6. Step 6: Final answer
    x = 219,990.50

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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.