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Finding the Fourth Proportional to 502,890.40, 754,335.60 and 483,536.80

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Solution

The fourth proportional to 502,890.40, 754,335.60 and 483,536.80 is: 725,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,890.40 : 754,335.60 = 483,536.80 : x
  2. Step 2: Convert to fraction form
    502,890.40/754,335.60 = 483,536.80/x
  3. Step 3: Cross multiply
    502,890.40x = 754,335.60 × 483,536.80
  4. Step 4: Simplify right side
    502,890.40x = 364,749,022,150.08
  5. Step 5: Solve for x
    x = 364,749,022,150.08/502,890.40
  6. Step 6: Final answer
    x = 725,305.20

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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.