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Finding the Fourth Proportional to 483,214.80, 724,822.20 and 349,813.20

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Solution

The fourth proportional to 483,214.80, 724,822.20 and 349,813.20 is: 524,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,214.80 : 724,822.20 = 349,813.20 : x
  2. Step 2: Convert to fraction form
    483,214.80/724,822.20 = 349,813.20/x
  3. Step 3: Cross multiply
    483,214.80x = 724,822.20 × 349,813.20
  4. Step 4: Simplify right side
    483,214.80x = 253,552,373,213.04
  5. Step 5: Solve for x
    x = 253,552,373,213.04/483,214.80
  6. Step 6: Final answer
    x = 524,719.80

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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.