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Finding the Fourth Proportional to 613,877.84, 846,745.80 and 384,036.32

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Solution

The fourth proportional to 613,877.84, 846,745.80 and 384,036.32 is: 529,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,877.84 : 846,745.80 = 384,036.32 : x
  2. Step 2: Convert to fraction form
    613,877.84/846,745.80 = 384,036.32/x
  3. Step 3: Cross multiply
    613,877.84x = 846,745.80 × 384,036.32
  4. Step 4: Simplify right side
    613,877.84x = 325,181,141,007.46
  5. Step 5: Solve for x
    x = 325,181,141,007.46/613,877.84
  6. Step 6: Final answer
    x = 529,716.37

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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.