Home / 1,211,593.20-1,817,408.80-358,751.40

Finding the Fourth Proportional to 1,211,593.20, 1,817,408.80 and 358,751.40

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Solution

The fourth proportional to 1,211,593.20, 1,817,408.80 and 358,751.40 is: 538,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,593.20 : 1,817,408.80 = 358,751.40 : x
  2. Step 2: Convert to fraction form
    1,211,593.20/1,817,408.80 = 358,751.40/x
  3. Step 3: Cross multiply
    1,211,593.20x = 1,817,408.80 × 358,751.40
  4. Step 4: Simplify right side
    1,211,593.20x = 651,997,951,372.32
  5. Step 5: Solve for x
    x = 651,997,951,372.32/1,211,593.20
  6. Step 6: Final answer
    x = 538,132.73

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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.