Home / 683,345.97-942,858.23-396,695.88

Finding the Fourth Proportional to 683,345.97, 942,858.23 and 396,695.88

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Solution

The fourth proportional to 683,345.97, 942,858.23 and 396,695.88 is: 547,347.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,345.97 : 942,858.23 = 396,695.88 : x
  2. Step 2: Convert to fraction form
    683,345.97/942,858.23 = 396,695.88/x
  3. Step 3: Cross multiply
    683,345.97x = 942,858.23 × 396,695.88
  4. Step 4: Simplify right side
    683,345.97x = 374,027,973,281.61
  5. Step 5: Solve for x
    x = 374,027,973,281.61/683,345.97
  6. Step 6: Final answer
    x = 547,347.89

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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.