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Finding the Fourth Proportional to 663,807.35, 995,685.36 and 190,492.71

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Solution

The fourth proportional to 663,807.35, 995,685.36 and 190,492.71 is: 285,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,807.35 : 995,685.36 = 190,492.71 : x
  2. Step 2: Convert to fraction form
    663,807.35/995,685.36 = 190,492.71/x
  3. Step 3: Cross multiply
    663,807.35x = 995,685.36 × 190,492.71
  4. Step 4: Simplify right side
    663,807.35x = 189,670,804,757.81
  5. Step 5: Solve for x
    x = 189,670,804,757.81/663,807.35
  6. Step 6: Final answer
    x = 285,731.70

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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.