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Finding the Fourth Proportional to 483,207.80, 724,811.70 and 349,806.20

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Solution

The fourth proportional to 483,207.80, 724,811.70 and 349,806.20 is: 524,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,207.80 : 724,811.70 = 349,806.20 : x
  2. Step 2: Convert to fraction form
    483,207.80/724,811.70 = 349,806.20/x
  3. Step 3: Cross multiply
    483,207.80x = 724,811.70 × 349,806.20
  4. Step 4: Simplify right side
    483,207.80x = 253,543,626,492.54
  5. Step 5: Solve for x
    x = 253,543,626,492.54/483,207.80
  6. Step 6: Final answer
    x = 524,709.30

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Similar ratio
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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.