Home / 685,701.50-1,028,619.91-236,363.21

Finding the Fourth Proportional to 685,701.50, 1,028,619.91 and 236,363.21

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Solution

The fourth proportional to 685,701.50, 1,028,619.91 and 236,363.21 is: 354,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,701.50 : 1,028,619.91 = 236,363.21 : x
  2. Step 2: Convert to fraction form
    685,701.50/1,028,619.91 = 236,363.21/x
  3. Step 3: Cross multiply
    685,701.50x = 1,028,619.91 × 236,363.21
  4. Step 4: Simplify right side
    685,701.50x = 243,127,908,593.18
  5. Step 5: Solve for x
    x = 243,127,908,593.18/685,701.50
  6. Step 6: Final answer
    x = 354,568.14

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Double scale
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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.