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Finding the Fourth Proportional to 519,308.88, 716,648.41 and 280,844.88

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Solution

The fourth proportional to 519,308.88, 716,648.41 and 280,844.88 is: 387,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,308.88 : 716,648.41 = 280,844.88 : x
  2. Step 2: Convert to fraction form
    519,308.88/716,648.41 = 280,844.88/x
  3. Step 3: Cross multiply
    519,308.88x = 716,648.41 × 280,844.88
  4. Step 4: Simplify right side
    519,308.88x = 201,267,036,708.64
  5. Step 5: Solve for x
    x = 201,267,036,708.64/519,308.88
  6. Step 6: Final answer
    x = 387,567.10

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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.