Home / 1,120,353.40-1,680,530.10-410,453.20

Finding the Fourth Proportional to 1,120,353.40, 1,680,530.10 and 410,453.20

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Solution

The fourth proportional to 1,120,353.40, 1,680,530.10 and 410,453.20 is: 615,679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,353.40 : 1,680,530.10 = 410,453.20 : x
  2. Step 2: Convert to fraction form
    1,120,353.40/1,680,530.10 = 410,453.20/x
  3. Step 3: Cross multiply
    1,120,353.40x = 1,680,530.10 × 410,453.20
  4. Step 4: Simplify right side
    1,120,353.40x = 689,778,957,241.32
  5. Step 5: Solve for x
    x = 689,778,957,241.32/1,120,353.40
  6. Step 6: Final answer
    x = 615,679.80

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Double scale
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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.