Home / 691,156.44-953,756.10-385,222.68

Finding the Fourth Proportional to 691,156.44, 953,756.10 and 385,222.68

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Solution

The fourth proportional to 691,156.44, 953,756.10 and 385,222.68 is: 531,585.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,156.44 : 953,756.10 = 385,222.68 : x
  2. Step 2: Convert to fraction form
    691,156.44/953,756.10 = 385,222.68/x
  3. Step 3: Cross multiply
    691,156.44x = 953,756.10 × 385,222.68
  4. Step 4: Simplify right side
    691,156.44x = 367,408,480,908.35
  5. Step 5: Solve for x
    x = 367,408,480,908.35/691,156.44
  6. Step 6: Final answer
    x = 531,585.12

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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.