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Finding the Fourth Proportional to 669,418.14, 922,735.35 and 656,147.10

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Solution

The fourth proportional to 669,418.14, 922,735.35 and 656,147.10 is: 904,442.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,418.14 : 922,735.35 = 656,147.10 : x
  2. Step 2: Convert to fraction form
    669,418.14/922,735.35 = 656,147.10/x
  3. Step 3: Cross multiply
    669,418.14x = 922,735.35 × 656,147.10
  4. Step 4: Simplify right side
    669,418.14x = 605,450,123,969.99
  5. Step 5: Solve for x
    x = 605,450,123,969.99/669,418.14
  6. Step 6: Final answer
    x = 904,442.36

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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.