Home / 671,456.21-927,441.98-487,401.22

Finding the Fourth Proportional to 671,456.21, 927,441.98 and 487,401.22

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Solution

The fourth proportional to 671,456.21, 927,441.98 and 487,401.22 is: 673,217.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,456.21 : 927,441.98 = 487,401.22 : x
  2. Step 2: Convert to fraction form
    671,456.21/927,441.98 = 487,401.22/x
  3. Step 3: Cross multiply
    671,456.21x = 927,441.98 × 487,401.22
  4. Step 4: Simplify right side
    671,456.21x = 452,036,352,531.22
  5. Step 5: Solve for x
    x = 452,036,352,531.22/671,456.21
  6. Step 6: Final answer
    x = 673,217.92

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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.