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Finding the Fourth Proportional to 385,567.79, 532,069.02 and 213,482.34

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Solution

The fourth proportional to 385,567.79, 532,069.02 and 213,482.34 is: 294,597.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,567.79 : 532,069.02 = 213,482.34 : x
  2. Step 2: Convert to fraction form
    385,567.79/532,069.02 = 213,482.34/x
  3. Step 3: Cross multiply
    385,567.79x = 532,069.02 × 213,482.34
  4. Step 4: Simplify right side
    385,567.79x = 113,587,339,431.11
  5. Step 5: Solve for x
    x = 113,587,339,431.11/385,567.79
  6. Step 6: Final answer
    x = 294,597.59

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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.