Home / 663,947.40-995,921.10-165,311.40

Finding the Fourth Proportional to 663,947.40, 995,921.10 and 165,311.40

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Solution

The fourth proportional to 663,947.40, 995,921.10 and 165,311.40 is: 247,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,947.40 : 995,921.10 = 165,311.40 : x
  2. Step 2: Convert to fraction form
    663,947.40/995,921.10 = 165,311.40/x
  3. Step 3: Cross multiply
    663,947.40x = 995,921.10 × 165,311.40
  4. Step 4: Simplify right side
    663,947.40x = 164,637,111,330.54
  5. Step 5: Solve for x
    x = 164,637,111,330.54/663,947.40
  6. Step 6: Final answer
    x = 247,967.10

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Half scale
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Double scale
Find fourth proportional to 663,948.40, 995,922.60 and 165,312.40
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.