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Finding the Fourth Proportional to 559,508.80, 839,263.20 and 483,401.20

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Solution

The fourth proportional to 559,508.80, 839,263.20 and 483,401.20 is: 725,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,508.80 : 839,263.20 = 483,401.20 : x
  2. Step 2: Convert to fraction form
    559,508.80/839,263.20 = 483,401.20/x
  3. Step 3: Cross multiply
    559,508.80x = 839,263.20 × 483,401.20
  4. Step 4: Simplify right side
    559,508.80x = 405,700,837,995.84
  5. Step 5: Solve for x
    x = 405,700,837,995.84/559,508.80
  6. Step 6: Final answer
    x = 725,101.80

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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.