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Finding the Fourth Proportional to 483,419.20, 723,695.20 and 359,310.40

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Solution

The fourth proportional to 483,419.20, 723,695.20 and 359,310.40 is: 537,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,419.20 : 723,695.20 = 359,310.40 : x
  2. Step 2: Convert to fraction form
    483,419.20/723,695.20 = 359,310.40/x
  3. Step 3: Cross multiply
    483,419.20x = 723,695.20 × 359,310.40
  4. Step 4: Simplify right side
    483,419.20x = 260,031,211,790.08
  5. Step 5: Solve for x
    x = 260,031,211,790.08/483,419.20
  6. Step 6: Final answer
    x = 537,900.05

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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.