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Finding the Fourth Proportional to 483,920.87, 724,461.84 and 339,325.34

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Solution

The fourth proportional to 483,920.87, 724,461.84 and 339,325.34 is: 507,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,920.87 : 724,461.84 = 339,325.34 : x
  2. Step 2: Convert to fraction form
    483,920.87/724,461.84 = 339,325.34/x
  3. Step 3: Cross multiply
    483,920.87x = 724,461.84 × 339,325.34
  4. Step 4: Simplify right side
    483,920.87x = 245,828,256,552.72
  5. Step 5: Solve for x
    x = 245,828,256,552.72/483,920.87
  6. Step 6: Final answer
    x = 507,992.68

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1.5x scale

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.