Home / 283,734.90-391,549.32-154,674.72

Finding the Fourth Proportional to 283,734.90, 391,549.32 and 154,674.72

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Solution

The fourth proportional to 283,734.90, 391,549.32 and 154,674.72 is: 213,448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,734.90 : 391,549.32 = 154,674.72 : x
  2. Step 2: Convert to fraction form
    283,734.90/391,549.32 = 154,674.72/x
  3. Step 3: Cross multiply
    283,734.90x = 391,549.32 × 154,674.72
  4. Step 4: Simplify right side
    283,734.90x = 60,562,781,437.19
  5. Step 5: Solve for x
    x = 60,562,781,437.19/283,734.90
  6. Step 6: Final answer
    x = 213,448.47

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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.