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Finding the Fourth Proportional to 455,535.80, 683,303.70 and 322,566.20

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Solution

The fourth proportional to 455,535.80, 683,303.70 and 322,566.20 is: 483,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,535.80 : 683,303.70 = 322,566.20 : x
  2. Step 2: Convert to fraction form
    455,535.80/683,303.70 = 322,566.20/x
  3. Step 3: Cross multiply
    455,535.80x = 683,303.70 × 322,566.20
  4. Step 4: Simplify right side
    455,535.80x = 220,410,677,954.94
  5. Step 5: Solve for x
    x = 220,410,677,954.94/455,535.80
  6. Step 6: Final answer
    x = 483,849.30

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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.