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Finding the Fourth Proportional to 663,602.72, 995,111.28 and 190,180.64

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Solution

The fourth proportional to 663,602.72, 995,111.28 and 190,180.64 is: 285,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,602.72 : 995,111.28 = 190,180.64 : x
  2. Step 2: Convert to fraction form
    663,602.72/995,111.28 = 190,180.64/x
  3. Step 3: Cross multiply
    663,602.72x = 995,111.28 × 190,180.64
  4. Step 4: Simplify right side
    663,602.72x = 189,250,900,101.62
  5. Step 5: Solve for x
    x = 189,250,900,101.62/663,602.72
  6. Step 6: Final answer
    x = 285,187.05

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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.