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Finding the Fourth Proportional to 432,053.10, 648,079.65 and 254,906.10

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Solution

The fourth proportional to 432,053.10, 648,079.65 and 254,906.10 is: 382,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,053.10 : 648,079.65 = 254,906.10 : x
  2. Step 2: Convert to fraction form
    432,053.10/648,079.65 = 254,906.10/x
  3. Step 3: Cross multiply
    432,053.10x = 648,079.65 × 254,906.10
  4. Step 4: Simplify right side
    432,053.10x = 165,199,456,070.87
  5. Step 5: Solve for x
    x = 165,199,456,070.87/432,053.10
  6. Step 6: Final answer
    x = 382,359.15

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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.