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Finding the Fourth Proportional to 517,788.17, 714,179.59 and 345,619.32

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Solution

The fourth proportional to 517,788.17, 714,179.59 and 345,619.32 is: 476,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,788.17 : 714,179.59 = 345,619.32 : x
  2. Step 2: Convert to fraction form
    517,788.17/714,179.59 = 345,619.32/x
  3. Step 3: Cross multiply
    517,788.17x = 714,179.59 × 345,619.32
  4. Step 4: Simplify right side
    517,788.17x = 246,834,264,253.68
  5. Step 5: Solve for x
    x = 246,834,264,253.68/517,788.17
  6. Step 6: Final answer
    x = 476,708.97

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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.