Home / 691,000.09-953,581.04-385,069.76

Finding the Fourth Proportional to 691,000.09, 953,581.04 and 385,069.76

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Solution

The fourth proportional to 691,000.09, 953,581.04 and 385,069.76 is: 531,396.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,000.09 : 953,581.04 = 385,069.76 : x
  2. Step 2: Convert to fraction form
    691,000.09/953,581.04 = 385,069.76/x
  3. Step 3: Cross multiply
    691,000.09x = 953,581.04 × 385,069.76
  4. Step 4: Simplify right side
    691,000.09x = 367,195,221,502.71
  5. Step 5: Solve for x
    x = 367,195,221,502.71/691,000.09
  6. Step 6: Final answer
    x = 531,396.78

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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.