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Finding the Fourth Proportional to 517,226.04, 713,780.64 and 287,801.64

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Solution

The fourth proportional to 517,226.04, 713,780.64 and 287,801.64 is: 397,171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,226.04 : 713,780.64 = 287,801.64 : x
  2. Step 2: Convert to fraction form
    517,226.04/713,780.64 = 287,801.64/x
  3. Step 3: Cross multiply
    517,226.04x = 713,780.64 × 287,801.64
  4. Step 4: Simplify right side
    517,226.04x = 205,427,238,792.25
  5. Step 5: Solve for x
    x = 205,427,238,792.25/517,226.04
  6. Step 6: Final answer
    x = 397,171.11

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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.