Home / 283,743.70-391,570.64-154,682.25

Finding the Fourth Proportional to 283,743.70, 391,570.64 and 154,682.25

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Solution

The fourth proportional to 283,743.70, 391,570.64 and 154,682.25 is: 213,463.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,743.70 : 391,570.64 = 154,682.25 : x
  2. Step 2: Convert to fraction form
    283,743.70/391,570.64 = 154,682.25/x
  3. Step 3: Cross multiply
    283,743.70x = 391,570.64 × 154,682.25
  4. Step 4: Simplify right side
    283,743.70x = 60,569,026,547.46
  5. Step 5: Solve for x
    x = 60,569,026,547.46/283,743.70
  6. Step 6: Final answer
    x = 213,463.87

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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.