Home / 664,334.10-996,501.15-190,991.70

Finding the Fourth Proportional to 664,334.10, 996,501.15 and 190,991.70

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Solution

The fourth proportional to 664,334.10, 996,501.15 and 190,991.70 is: 286,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,334.10 : 996,501.15 = 190,991.70 : x
  2. Step 2: Convert to fraction form
    664,334.10/996,501.15 = 190,991.70/x
  3. Step 3: Cross multiply
    664,334.10x = 996,501.15 × 190,991.70
  4. Step 4: Simplify right side
    664,334.10x = 190,323,448,690.46
  5. Step 5: Solve for x
    x = 190,323,448,690.46/664,334.10
  6. Step 6: Final answer
    x = 286,487.55

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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.