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Finding the Fourth Proportional to 627,765.89, 866,326.79 and 341,287.07

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Solution

The fourth proportional to 627,765.89, 866,326.79 and 341,287.07 is: 470,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,765.89 : 866,326.79 = 341,287.07 : x
  2. Step 2: Convert to fraction form
    627,765.89/866,326.79 = 341,287.07/x
  3. Step 3: Cross multiply
    627,765.89x = 866,326.79 × 341,287.07
  4. Step 4: Simplify right side
    627,765.89x = 295,666,130,115.17
  5. Step 5: Solve for x
    x = 295,666,130,115.17/627,765.89
  6. Step 6: Final answer
    x = 470,981.52

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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.