Home / 283,631.88-391,412.07-154,570.40

Finding the Fourth Proportional to 283,631.88, 391,412.07 and 154,570.40

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Solution

The fourth proportional to 283,631.88, 391,412.07 and 154,570.40 is: 213,307.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,631.88 : 391,412.07 = 154,570.40 : x
  2. Step 2: Convert to fraction form
    283,631.88/391,412.07 = 154,570.40/x
  3. Step 3: Cross multiply
    283,631.88x = 391,412.07 × 154,570.40
  4. Step 4: Simplify right side
    283,631.88x = 60,500,719,735.46
  5. Step 5: Solve for x
    x = 60,500,719,735.46/283,631.88
  6. Step 6: Final answer
    x = 213,307.19

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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.