Home / 818,967.39-1,228,626.05-286,505.79

Finding the Fourth Proportional to 818,967.39, 1,228,626.05 and 286,505.79

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Solution

The fourth proportional to 818,967.39, 1,228,626.05 and 286,505.79 is: 429,819.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,967.39 : 1,228,626.05 = 286,505.79 : x
  2. Step 2: Convert to fraction form
    818,967.39/1,228,626.05 = 286,505.79/x
  3. Step 3: Cross multiply
    818,967.39x = 1,228,626.05 × 286,505.79
  4. Step 4: Simplify right side
    818,967.39x = 352,008,475,637.30
  5. Step 5: Solve for x
    x = 352,008,475,637.30/818,967.39
  6. Step 6: Final answer
    x = 429,819.89

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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.