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Finding the Fourth Proportional to 372,883.64, 514,576.78 and 203,117.76

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Solution

The fourth proportional to 372,883.64, 514,576.78 and 203,117.76 is: 280,301.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,883.64 : 514,576.78 = 203,117.76 : x
  2. Step 2: Convert to fraction form
    372,883.64/514,576.78 = 203,117.76/x
  3. Step 3: Cross multiply
    372,883.64x = 514,576.78 × 203,117.76
  4. Step 4: Simplify right side
    372,883.64x = 104,519,682,901.61
  5. Step 5: Solve for x
    x = 104,519,682,901.61/372,883.64
  6. Step 6: Final answer
    x = 280,301.07

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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.