Home / 691,205.04-953,867.30-385,300.85

Finding the Fourth Proportional to 691,205.04, 953,867.30 and 385,300.85

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Solution

The fourth proportional to 691,205.04, 953,867.30 and 385,300.85 is: 531,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,205.04 : 953,867.30 = 385,300.85 : x
  2. Step 2: Convert to fraction form
    691,205.04/953,867.30 = 385,300.85/x
  3. Step 3: Cross multiply
    691,205.04x = 953,867.30 × 385,300.85
  4. Step 4: Simplify right side
    691,205.04x = 367,525,874,781.36
  5. Step 5: Solve for x
    x = 367,525,874,781.36/691,205.04
  6. Step 6: Final answer
    x = 531,717.59

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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.