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Finding the Fourth Proportional to 577,482.40, 866,207.40 and 261,938.80

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Solution

The fourth proportional to 577,482.40, 866,207.40 and 261,938.80 is: 392,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,482.40 : 866,207.40 = 261,938.80 : x
  2. Step 2: Convert to fraction form
    577,482.40/866,207.40 = 261,938.80/x
  3. Step 3: Cross multiply
    577,482.40x = 866,207.40 × 261,938.80
  4. Step 4: Simplify right side
    577,482.40x = 226,893,326,907.12
  5. Step 5: Solve for x
    x = 226,893,326,907.12/577,482.40
  6. Step 6: Final answer
    x = 392,900.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.