Home / 691,200.54-953,861.06-385,296.35

Finding the Fourth Proportional to 691,200.54, 953,861.06 and 385,296.35

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Solution

The fourth proportional to 691,200.54, 953,861.06 and 385,296.35 is: 531,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,200.54 : 953,861.06 = 385,296.35 : x
  2. Step 2: Convert to fraction form
    691,200.54/953,861.06 = 385,296.35/x
  3. Step 3: Cross multiply
    691,200.54x = 953,861.06 × 385,296.35
  4. Step 4: Simplify right side
    691,200.54x = 367,519,181,019.07
  5. Step 5: Solve for x
    x = 367,519,181,019.07/691,200.54
  6. Step 6: Final answer
    x = 531,711.36

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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.