Home / 283,635.74-391,417.39-154,574.25

Finding the Fourth Proportional to 283,635.74, 391,417.39 and 154,574.25

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Solution

The fourth proportional to 283,635.74, 391,417.39 and 154,574.25 is: 213,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,635.74 : 391,417.39 = 154,574.25 : x
  2. Step 2: Convert to fraction form
    283,635.74/391,417.39 = 154,574.25/x
  3. Step 3: Cross multiply
    283,635.74x = 391,417.39 × 154,574.25
  4. Step 4: Simplify right side
    283,635.74x = 60,503,047,160.18
  5. Step 5: Solve for x
    x = 60,503,047,160.18/283,635.74
  6. Step 6: Final answer
    x = 213,312.49

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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.