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Finding the Fourth Proportional to 385,561.92, 532,038.51 and 213,473.58

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Solution

The fourth proportional to 385,561.92, 532,038.51 and 213,473.58 is: 294,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,561.92 : 532,038.51 = 213,473.58 : x
  2. Step 2: Convert to fraction form
    385,561.92/532,038.51 = 213,473.58/x
  3. Step 3: Cross multiply
    385,561.92x = 532,038.51 × 213,473.58
  4. Step 4: Simplify right side
    385,561.92x = 113,576,167,921.50
  5. Step 5: Solve for x
    x = 113,576,167,921.50/385,561.92
  6. Step 6: Final answer
    x = 294,573.09

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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.