Home / 624,311.98-861,339.66-406,421.17

Finding the Fourth Proportional to 624,311.98, 861,339.66 and 406,421.17

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Solution

The fourth proportional to 624,311.98, 861,339.66 and 406,421.17 is: 560,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,311.98 : 861,339.66 = 406,421.17 : x
  2. Step 2: Convert to fraction form
    624,311.98/861,339.66 = 406,421.17/x
  3. Step 3: Cross multiply
    624,311.98x = 861,339.66 × 406,421.17
  4. Step 4: Simplify right side
    624,311.98x = 350,066,672,384.60
  5. Step 5: Solve for x
    x = 350,066,672,384.60/624,311.98
  6. Step 6: Final answer
    x = 560,723.94

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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.