Home / 691,206.30-1,036,809.45-192,570.30

Finding the Fourth Proportional to 691,206.30, 1,036,809.45 and 192,570.30

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Solution

The fourth proportional to 691,206.30, 1,036,809.45 and 192,570.30 is: 288,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,206.30 : 1,036,809.45 = 192,570.30 : x
  2. Step 2: Convert to fraction form
    691,206.30/1,036,809.45 = 192,570.30/x
  3. Step 3: Cross multiply
    691,206.30x = 1,036,809.45 × 192,570.30
  4. Step 4: Simplify right side
    691,206.30x = 199,658,706,829.34
  5. Step 5: Solve for x
    x = 199,658,706,829.34/691,206.30
  6. Step 6: Final answer
    x = 288,855.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.