Home / 682,548.40-942,104.15-396,160.75

Finding the Fourth Proportional to 682,548.40, 942,104.15 and 396,160.75

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Solution

The fourth proportional to 682,548.40, 942,104.15 and 396,160.75 is: 546,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,548.40 : 942,104.15 = 396,160.75 : x
  2. Step 2: Convert to fraction form
    682,548.40/942,104.15 = 396,160.75/x
  3. Step 3: Cross multiply
    682,548.40x = 942,104.15 × 396,160.75
  4. Step 4: Simplify right side
    682,548.40x = 373,224,686,642.11
  5. Step 5: Solve for x
    x = 373,224,686,642.11/682,548.40
  6. Step 6: Final answer
    x = 546,810.58

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.