Home / 1,248,590.40-1,873,144.80-407,205.60

Finding the Fourth Proportional to 1,248,590.40, 1,873,144.80 and 407,205.60

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Solution

The fourth proportional to 1,248,590.40, 1,873,144.80 and 407,205.60 is: 610,892.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,590.40 : 1,873,144.80 = 407,205.60 : x
  2. Step 2: Convert to fraction form
    1,248,590.40/1,873,144.80 = 407,205.60/x
  3. Step 3: Cross multiply
    1,248,590.40x = 1,873,144.80 × 407,205.60
  4. Step 4: Simplify right side
    1,248,590.40x = 762,755,052,170.88
  5. Step 5: Solve for x
    x = 762,755,052,170.88/1,248,590.40
  6. Step 6: Final answer
    x = 610,892.93

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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.