Home / 685,774.09-1,028,710.41-236,488.50

Finding the Fourth Proportional to 685,774.09, 1,028,710.41 and 236,488.50

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Solution

The fourth proportional to 685,774.09, 1,028,710.41 and 236,488.50 is: 354,749.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,774.09 : 1,028,710.41 = 236,488.50 : x
  2. Step 2: Convert to fraction form
    685,774.09/1,028,710.41 = 236,488.50/x
  3. Step 3: Cross multiply
    685,774.09x = 1,028,710.41 × 236,488.50
  4. Step 4: Simplify right side
    685,774.09x = 243,278,181,795.29
  5. Step 5: Solve for x
    x = 243,278,181,795.29/685,774.09
  6. Step 6: Final answer
    x = 354,749.74

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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.