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Finding the Fourth Proportional to 625,989.34, 863,860.98 and 339,510.16

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Solution

The fourth proportional to 625,989.34, 863,860.98 and 339,510.16 is: 468,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,989.34 : 863,860.98 = 339,510.16 : x
  2. Step 2: Convert to fraction form
    625,989.34/863,860.98 = 339,510.16/x
  3. Step 3: Cross multiply
    625,989.34x = 863,860.98 × 339,510.16
  4. Step 4: Simplify right side
    625,989.34x = 293,289,579,537.56
  5. Step 5: Solve for x
    x = 293,289,579,537.56/625,989.34
  6. Step 6: Final answer
    x = 468,521.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.