Home / 676,403.33-933,434.55-382,020.80

Finding the Fourth Proportional to 676,403.33, 933,434.55 and 382,020.80

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Solution

The fourth proportional to 676,403.33, 933,434.55 and 382,020.80 is: 527,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,403.33 : 933,434.55 = 382,020.80 : x
  2. Step 2: Convert to fraction form
    676,403.33/933,434.55 = 382,020.80/x
  3. Step 3: Cross multiply
    676,403.33x = 933,434.55 × 382,020.80
  4. Step 4: Simplify right side
    676,403.33x = 356,591,408,871.47
  5. Step 5: Solve for x
    x = 356,591,408,871.47/676,403.33
  6. Step 6: Final answer
    x = 527,187.55

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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.