Home / 1,408,513.60-2,112,770.40-411,241.60

Finding the Fourth Proportional to 1,408,513.60, 2,112,770.40 and 411,241.60

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Solution

The fourth proportional to 1,408,513.60, 2,112,770.40 and 411,241.60 is: 616,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,513.60 : 2,112,770.40 = 411,241.60 : x
  2. Step 2: Convert to fraction form
    1,408,513.60/2,112,770.40 = 411,241.60/x
  3. Step 3: Cross multiply
    1,408,513.60x = 2,112,770.40 × 411,241.60
  4. Step 4: Simplify right side
    1,408,513.60x = 868,859,079,728.64
  5. Step 5: Solve for x
    x = 868,859,079,728.64/1,408,513.60
  6. Step 6: Final answer
    x = 616,862.40

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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.