Home / 1,188,585.78-1,783,141.08-440,631.78

Finding the Fourth Proportional to 1,188,585.78, 1,783,141.08 and 440,631.78

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Solution

The fourth proportional to 1,188,585.78, 1,783,141.08 and 440,631.78 is: 661,044.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,585.78 : 1,783,141.08 = 440,631.78 : x
  2. Step 2: Convert to fraction form
    1,188,585.78/1,783,141.08 = 440,631.78/x
  3. Step 3: Cross multiply
    1,188,585.78x = 1,783,141.08 × 440,631.78
  4. Step 4: Simplify right side
    1,188,585.78x = 785,708,628,071.52
  5. Step 5: Solve for x
    x = 785,708,628,071.52/1,188,585.78
  6. Step 6: Final answer
    x = 661,044.95

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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.