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Finding the Fourth Proportional to 526,662.88, 790,192.32 and 313,553.76

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Solution

The fourth proportional to 526,662.88, 790,192.32 and 313,553.76 is: 470,448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,662.88 : 790,192.32 = 313,553.76 : x
  2. Step 2: Convert to fraction form
    526,662.88/790,192.32 = 313,553.76/x
  3. Step 3: Cross multiply
    526,662.88x = 790,192.32 × 313,553.76
  4. Step 4: Simplify right side
    526,662.88x = 247,767,773,059.12
  5. Step 5: Solve for x
    x = 247,767,773,059.12/526,662.88
  6. Step 6: Final answer
    x = 470,448.52

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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.