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Finding the Fourth Proportional to 481,200.70, 721,801.05 and 402,468.70

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Solution

The fourth proportional to 481,200.70, 721,801.05 and 402,468.70 is: 603,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,200.70 : 721,801.05 = 402,468.70 : x
  2. Step 2: Convert to fraction form
    481,200.70/721,801.05 = 402,468.70/x
  3. Step 3: Cross multiply
    481,200.70x = 721,801.05 × 402,468.70
  4. Step 4: Simplify right side
    481,200.70x = 290,502,330,252.14
  5. Step 5: Solve for x
    x = 290,502,330,252.14/481,200.70
  6. Step 6: Final answer
    x = 603,703.05

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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.