Home / 283,756.39-391,586.49-156,436.54

Finding the Fourth Proportional to 283,756.39, 391,586.49 and 156,436.54

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Solution

The fourth proportional to 283,756.39, 391,586.49 and 156,436.54 is: 215,883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,756.39 : 391,586.49 = 156,436.54 : x
  2. Step 2: Convert to fraction form
    283,756.39/391,586.49 = 156,436.54/x
  3. Step 3: Cross multiply
    283,756.39x = 391,586.49 × 156,436.54
  4. Step 4: Simplify right side
    283,756.39x = 61,258,434,040.74
  5. Step 5: Solve for x
    x = 61,258,434,040.74/283,756.39
  6. Step 6: Final answer
    x = 215,883.89

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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.