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Finding the Fourth Proportional to 496,502.90, 745,062.15 and 260,015.30

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Solution

The fourth proportional to 496,502.90, 745,062.15 and 260,015.30 is: 390,184.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,502.90 : 745,062.15 = 260,015.30 : x
  2. Step 2: Convert to fraction form
    496,502.90/745,062.15 = 260,015.30/x
  3. Step 3: Cross multiply
    496,502.90x = 745,062.15 × 260,015.30
  4. Step 4: Simplify right side
    496,502.90x = 193,727,558,450.90
  5. Step 5: Solve for x
    x = 193,727,558,450.90/496,502.90
  6. Step 6: Final answer
    x = 390,184.14

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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.