Home / 289,446.40-399,436.03-176,269.15

Finding the Fourth Proportional to 289,446.40, 399,436.03 and 176,269.15

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Solution

The fourth proportional to 289,446.40, 399,436.03 and 176,269.15 is: 243,251.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,446.40 : 399,436.03 = 176,269.15 : x
  2. Step 2: Convert to fraction form
    289,446.40/399,436.03 = 176,269.15/x
  3. Step 3: Cross multiply
    289,446.40x = 399,436.03 × 176,269.15
  4. Step 4: Simplify right side
    289,446.40x = 70,408,250,207.11
  5. Step 5: Solve for x
    x = 70,408,250,207.11/289,446.40
  6. Step 6: Final answer
    x = 243,251.43

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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.