Home / 691,176.47-953,821.33-385,249.39

Finding the Fourth Proportional to 691,176.47, 953,821.33 and 385,249.39

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Solution

The fourth proportional to 691,176.47, 953,821.33 and 385,249.39 is: 531,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,176.47 : 953,821.33 = 385,249.39 : x
  2. Step 2: Convert to fraction form
    691,176.47/953,821.33 = 385,249.39/x
  3. Step 3: Cross multiply
    691,176.47x = 953,821.33 × 385,249.39
  4. Step 4: Simplify right side
    691,176.47x = 367,459,082,203.81
  5. Step 5: Solve for x
    x = 367,459,082,203.81/691,176.47
  6. Step 6: Final answer
    x = 531,642.93

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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.