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Finding the Fourth Proportional to 627,795.51, 866,353.53 and 341,315.61

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Solution

The fourth proportional to 627,795.51, 866,353.53 and 341,315.61 is: 471,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,795.51 : 866,353.53 = 341,315.61 : x
  2. Step 2: Convert to fraction form
    627,795.51/866,353.53 = 341,315.61/x
  3. Step 3: Cross multiply
    627,795.51x = 866,353.53 × 341,315.61
  4. Step 4: Simplify right side
    627,795.51x = 295,699,983,567.60
  5. Step 5: Solve for x
    x = 295,699,983,567.60/627,795.51
  6. Step 6: Final answer
    x = 471,013.22

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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.