Home / 283,426.71-391,120.98-154,362.36

Finding the Fourth Proportional to 283,426.71, 391,120.98 and 154,362.36

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Solution

The fourth proportional to 283,426.71, 391,120.98 and 154,362.36 is: 213,015.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,426.71 : 391,120.98 = 154,362.36 : x
  2. Step 2: Convert to fraction form
    283,426.71/391,120.98 = 154,362.36/x
  3. Step 3: Cross multiply
    283,426.71x = 391,120.98 × 154,362.36
  4. Step 4: Simplify right side
    283,426.71x = 60,374,357,518.31
  5. Step 5: Solve for x
    x = 60,374,357,518.31/283,426.71
  6. Step 6: Final answer
    x = 213,015.77

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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.