Home / 624,311.48-861,338.97-406,420.67

Finding the Fourth Proportional to 624,311.48, 861,338.97 and 406,420.67

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Solution

The fourth proportional to 624,311.48, 861,338.97 and 406,420.67 is: 560,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,311.48 : 861,338.97 = 406,420.67 : x
  2. Step 2: Convert to fraction form
    624,311.48/861,338.97 = 406,420.67/x
  3. Step 3: Cross multiply
    624,311.48x = 861,338.97 × 406,420.67
  4. Step 4: Simplify right side
    624,311.48x = 350,065,961,284.51
  5. Step 5: Solve for x
    x = 350,065,961,284.51/624,311.48
  6. Step 6: Final answer
    x = 560,723.25

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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.