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Finding the Fourth Proportional to 663,368.48, 995,047.25 and 190,054.30

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Solution

The fourth proportional to 663,368.48, 995,047.25 and 190,054.30 is: 285,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,368.48 : 995,047.25 = 190,054.30 : x
  2. Step 2: Convert to fraction form
    663,368.48/995,047.25 = 190,054.30/x
  3. Step 3: Cross multiply
    663,368.48x = 995,047.25 × 190,054.30
  4. Step 4: Simplify right side
    663,368.48x = 189,113,002,640.17
  5. Step 5: Solve for x
    x = 189,113,002,640.17/663,368.48
  6. Step 6: Final answer
    x = 285,079.87

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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.