Home / 689,580.90-1,034,371.35-190,944.90

Finding the Fourth Proportional to 689,580.90, 1,034,371.35 and 190,944.90

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Solution

The fourth proportional to 689,580.90, 1,034,371.35 and 190,944.90 is: 286,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,580.90 : 1,034,371.35 = 190,944.90 : x
  2. Step 2: Convert to fraction form
    689,580.90/1,034,371.35 = 190,944.90/x
  3. Step 3: Cross multiply
    689,580.90x = 1,034,371.35 × 190,944.90
  4. Step 4: Simplify right side
    689,580.90x = 197,507,933,988.62
  5. Step 5: Solve for x
    x = 197,507,933,988.62/689,580.90
  6. Step 6: Final answer
    x = 286,417.35

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Double scale
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Similar ratio
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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.