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Finding the Fourth Proportional to 511,671.21, 706,018.17 and 328,070.34

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Solution

The fourth proportional to 511,671.21, 706,018.17 and 328,070.34 is: 452,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,671.21 : 706,018.17 = 328,070.34 : x
  2. Step 2: Convert to fraction form
    511,671.21/706,018.17 = 328,070.34/x
  3. Step 3: Cross multiply
    511,671.21x = 706,018.17 × 328,070.34
  4. Step 4: Simplify right side
    511,671.21x = 231,623,621,078.08
  5. Step 5: Solve for x
    x = 231,623,621,078.08/511,671.21
  6. Step 6: Final answer
    x = 452,680.58

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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.