Home / 873,321.51-1,205,171.34-491,347.38

Finding the Fourth Proportional to 873,321.51, 1,205,171.34 and 491,347.38

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Solution

The fourth proportional to 873,321.51, 1,205,171.34 and 491,347.38 is: 678,052.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,321.51 : 1,205,171.34 = 491,347.38 : x
  2. Step 2: Convert to fraction form
    873,321.51/1,205,171.34 = 491,347.38/x
  3. Step 3: Cross multiply
    873,321.51x = 1,205,171.34 × 491,347.38
  4. Step 4: Simplify right side
    873,321.51x = 592,157,784,670.91
  5. Step 5: Solve for x
    x = 592,157,784,670.91/873,321.51
  6. Step 6: Final answer
    x = 678,052.44

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Double scale
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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.