Home / 773,107.40-1,159,661.10-457,401.80

Finding the Fourth Proportional to 773,107.40, 1,159,661.10 and 457,401.80

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Solution

The fourth proportional to 773,107.40, 1,159,661.10 and 457,401.80 is: 686,102.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,107.40 : 1,159,661.10 = 457,401.80 : x
  2. Step 2: Convert to fraction form
    773,107.40/1,159,661.10 = 457,401.80/x
  3. Step 3: Cross multiply
    773,107.40x = 1,159,661.10 × 457,401.80
  4. Step 4: Simplify right side
    773,107.40x = 530,431,074,529.98
  5. Step 5: Solve for x
    x = 530,431,074,529.98/773,107.40
  6. Step 6: Final answer
    x = 686,102.70

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Double scale
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Similar ratio
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1.5x scale

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.