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Finding the Fourth Proportional to 631,992.48, 947,989.68 and 253,083.84

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Solution

The fourth proportional to 631,992.48, 947,989.68 and 253,083.84 is: 379,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,992.48 : 947,989.68 = 253,083.84 : x
  2. Step 2: Convert to fraction form
    631,992.48/947,989.68 = 253,083.84/x
  3. Step 3: Cross multiply
    631,992.48x = 947,989.68 × 253,083.84
  4. Step 4: Simplify right side
    631,992.48x = 239,920,868,494.77
  5. Step 5: Solve for x
    x = 239,920,868,494.77/631,992.48
  6. Step 6: Final answer
    x = 379,626.14

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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.