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Finding the Fourth Proportional to 375,260.64, 517,860.48 and 203,180.40

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Solution

The fourth proportional to 375,260.64, 517,860.48 and 203,180.40 is: 280,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,260.64 : 517,860.48 = 203,180.40 : x
  2. Step 2: Convert to fraction form
    375,260.64/517,860.48 = 203,180.40/x
  3. Step 3: Cross multiply
    375,260.64x = 517,860.48 × 203,180.40
  4. Step 4: Simplify right side
    375,260.64x = 105,219,099,470.59
  5. Step 5: Solve for x
    x = 105,219,099,470.59/375,260.64
  6. Step 6: Final answer
    x = 280,389.38

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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.