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Finding the Fourth Proportional to 544,543.92, 751,360.44 and 318,145.68

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Solution

The fourth proportional to 544,543.92, 751,360.44 and 318,145.68 is: 438,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,543.92 : 751,360.44 = 318,145.68 : x
  2. Step 2: Convert to fraction form
    544,543.92/751,360.44 = 318,145.68/x
  3. Step 3: Cross multiply
    544,543.92x = 751,360.44 × 318,145.68
  4. Step 4: Simplify right side
    544,543.92x = 239,042,078,108.90
  5. Step 5: Solve for x
    x = 239,042,078,108.90/544,543.92
  6. Step 6: Final answer
    x = 438,976.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.