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Finding the Fourth Proportional to 483,311.40, 724,254.30 and 350,471.40

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Solution

The fourth proportional to 483,311.40, 724,254.30 and 350,471.40 is: 525,190.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,311.40 : 724,254.30 = 350,471.40 : x
  2. Step 2: Convert to fraction form
    483,311.40/724,254.30 = 350,471.40/x
  3. Step 3: Cross multiply
    483,311.40x = 724,254.30 × 350,471.40
  4. Step 4: Simplify right side
    483,311.40x = 253,830,418,477.02
  5. Step 5: Solve for x
    x = 253,830,418,477.02/483,311.40
  6. Step 6: Final answer
    x = 525,190.22

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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.