Home / 697,279.21-1,045,781.08-191,709.81

Finding the Fourth Proportional to 697,279.21, 1,045,781.08 and 191,709.81

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Solution

The fourth proportional to 697,279.21, 1,045,781.08 and 191,709.81 is: 287,526.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,279.21 : 1,045,781.08 = 191,709.81 : x
  2. Step 2: Convert to fraction form
    697,279.21/1,045,781.08 = 191,709.81/x
  3. Step 3: Cross multiply
    697,279.21x = 1,045,781.08 × 191,709.81
  4. Step 4: Simplify right side
    697,279.21x = 200,486,492,148.40
  5. Step 5: Solve for x
    x = 200,486,492,148.40/697,279.21
  6. Step 6: Final answer
    x = 287,526.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.