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Finding the Fourth Proportional to 517,922.92, 714,840.42 and 303,175.72

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Solution

The fourth proportional to 517,922.92, 714,840.42 and 303,175.72 is: 418,445.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,922.92 : 714,840.42 = 303,175.72 : x
  2. Step 2: Convert to fraction form
    517,922.92/714,840.42 = 303,175.72/x
  3. Step 3: Cross multiply
    517,922.92x = 714,840.42 × 303,175.72
  4. Step 4: Simplify right side
    517,922.92x = 216,722,259,018.60
  5. Step 5: Solve for x
    x = 216,722,259,018.60/517,922.92
  6. Step 6: Final answer
    x = 418,445.01

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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.