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Finding the Fourth Proportional to 543,253.83, 749,653.92 and 328,512.30

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Solution

The fourth proportional to 543,253.83, 749,653.92 and 328,512.30 is: 453,324.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,253.83 : 749,653.92 = 328,512.30 : x
  2. Step 2: Convert to fraction form
    543,253.83/749,653.92 = 328,512.30/x
  3. Step 3: Cross multiply
    543,253.83x = 749,653.92 × 328,512.30
  4. Step 4: Simplify right side
    543,253.83x = 246,270,533,463.22
  5. Step 5: Solve for x
    x = 246,270,533,463.22/543,253.83
  6. Step 6: Final answer
    x = 453,324.98

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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.