Home / 691,154.94-953,754.03-385,221.18

Finding the Fourth Proportional to 691,154.94, 953,754.03 and 385,221.18

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Solution

The fourth proportional to 691,154.94, 953,754.03 and 385,221.18 is: 531,583.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,154.94 : 953,754.03 = 385,221.18 : x
  2. Step 2: Convert to fraction form
    691,154.94/953,754.03 = 385,221.18/x
  3. Step 3: Cross multiply
    691,154.94x = 953,754.03 × 385,221.18
  4. Step 4: Simplify right side
    691,154.94x = 367,406,252,866.36
  5. Step 5: Solve for x
    x = 367,406,252,866.36/691,154.94
  6. Step 6: Final answer
    x = 531,583.05

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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.