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Finding the Fourth Proportional to 497,598.82, 686,686.38 and 271,244.32

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Solution

The fourth proportional to 497,598.82, 686,686.38 and 271,244.32 is: 374,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,598.82 : 686,686.38 = 271,244.32 : x
  2. Step 2: Convert to fraction form
    497,598.82/686,686.38 = 271,244.32/x
  3. Step 3: Cross multiply
    497,598.82x = 686,686.38 × 271,244.32
  4. Step 4: Simplify right side
    497,598.82x = 186,259,780,196.36
  5. Step 5: Solve for x
    x = 186,259,780,196.36/497,598.82
  6. Step 6: Final answer
    x = 374,317.17

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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.