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Finding the Fourth Proportional to 638,365.44, 957,253.86 and 188,925.60

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Solution

The fourth proportional to 638,365.44, 957,253.86 and 188,925.60 is: 283,301.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,365.44 : 957,253.86 = 188,925.60 : x
  2. Step 2: Convert to fraction form
    638,365.44/957,253.86 = 188,925.60/x
  3. Step 3: Cross multiply
    638,365.44x = 957,253.86 × 188,925.60
  4. Step 4: Simplify right side
    638,365.44x = 180,849,759,852.82
  5. Step 5: Solve for x
    x = 180,849,759,852.82/638,365.44
  6. Step 6: Final answer
    x = 283,301.30

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1.5x scale

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.