Home / 1,210,100.70-1,815,323.85-411,419.10

Finding the Fourth Proportional to 1,210,100.70, 1,815,323.85 and 411,419.10

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Solution

The fourth proportional to 1,210,100.70, 1,815,323.85 and 411,419.10 is: 617,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,100.70 : 1,815,323.85 = 411,419.10 : x
  2. Step 2: Convert to fraction form
    1,210,100.70/1,815,323.85 = 411,419.10/x
  3. Step 3: Cross multiply
    1,210,100.70x = 1,815,323.85 × 411,419.10
  4. Step 4: Simplify right side
    1,210,100.70x = 746,858,904,575.54
  5. Step 5: Solve for x
    x = 746,858,904,575.54/1,210,100.70
  6. Step 6: Final answer
    x = 617,187.40

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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.