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Finding the Fourth Proportional to 326,095.70, 489,143.55 and 302,476.10

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Solution

The fourth proportional to 326,095.70, 489,143.55 and 302,476.10 is: 453,714.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,095.70 : 489,143.55 = 302,476.10 : x
  2. Step 2: Convert to fraction form
    326,095.70/489,143.55 = 302,476.10/x
  3. Step 3: Cross multiply
    326,095.70x = 489,143.55 × 302,476.10
  4. Step 4: Simplify right side
    326,095.70x = 147,954,233,344.16
  5. Step 5: Solve for x
    x = 147,954,233,344.16/326,095.70
  6. Step 6: Final answer
    x = 453,714.15

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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.