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Finding the Fourth Proportional to 517,474.32, 713,878.56 and 374,007.12

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Solution

The fourth proportional to 517,474.32, 713,878.56 and 374,007.12 is: 515,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,474.32 : 713,878.56 = 374,007.12 : x
  2. Step 2: Convert to fraction form
    517,474.32/713,878.56 = 374,007.12/x
  3. Step 3: Cross multiply
    517,474.32x = 713,878.56 × 374,007.12
  4. Step 4: Simplify right side
    517,474.32x = 266,995,664,255.35
  5. Step 5: Solve for x
    x = 266,995,664,255.35/517,474.32
  6. Step 6: Final answer
    x = 515,959.25

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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.