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Finding the Fourth Proportional to 479,220.60, 718,830.90 and 183,732.60

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Solution

The fourth proportional to 479,220.60, 718,830.90 and 183,732.60 is: 275,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,220.60 : 718,830.90 = 183,732.60 : x
  2. Step 2: Convert to fraction form
    479,220.60/718,830.90 = 183,732.60/x
  3. Step 3: Cross multiply
    479,220.60x = 718,830.90 × 183,732.60
  4. Step 4: Simplify right side
    479,220.60x = 132,072,670,217.34
  5. Step 5: Solve for x
    x = 132,072,670,217.34/479,220.60
  6. Step 6: Final answer
    x = 275,598.90

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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.