Home / 1,408,509.60-2,112,764.40-411,237.60

Finding the Fourth Proportional to 1,408,509.60, 2,112,764.40 and 411,237.60

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Solution

The fourth proportional to 1,408,509.60, 2,112,764.40 and 411,237.60 is: 616,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,509.60 : 2,112,764.40 = 411,237.60 : x
  2. Step 2: Convert to fraction form
    1,408,509.60/2,112,764.40 = 411,237.60/x
  3. Step 3: Cross multiply
    1,408,509.60x = 2,112,764.40 × 411,237.60
  4. Step 4: Simplify right side
    1,408,509.60x = 868,848,161,221.44
  5. Step 5: Solve for x
    x = 868,848,161,221.44/1,408,509.60
  6. Step 6: Final answer
    x = 616,856.40

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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.