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Finding the Fourth Proportional to 663,935.40, 995,903.10 and 165,299.40

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Solution

The fourth proportional to 663,935.40, 995,903.10 and 165,299.40 is: 247,949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,935.40 : 995,903.10 = 165,299.40 : x
  2. Step 2: Convert to fraction form
    663,935.40/995,903.10 = 165,299.40/x
  3. Step 3: Cross multiply
    663,935.40x = 995,903.10 × 165,299.40
  4. Step 4: Simplify right side
    663,935.40x = 164,622,184,888.14
  5. Step 5: Solve for x
    x = 164,622,184,888.14/663,935.40
  6. Step 6: Final answer
    x = 247,949.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 663,936.40, 995,904.60 and 165,300.40
Similar ratio
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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.