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Finding the Fourth Proportional to 631,712.62, 948,225.21 and 365,992.30

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Solution

The fourth proportional to 631,712.62, 948,225.21 and 365,992.30 is: 549,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,712.62 : 948,225.21 = 365,992.30 : x
  2. Step 2: Convert to fraction form
    631,712.62/948,225.21 = 365,992.30/x
  3. Step 3: Cross multiply
    631,712.62x = 948,225.21 × 365,992.30
  4. Step 4: Simplify right side
    631,712.62x = 347,043,125,525.88
  5. Step 5: Solve for x
    x = 347,043,125,525.88/631,712.62
  6. Step 6: Final answer
    x = 549,368.68

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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.