Home / 811,693.80-1,217,540.70-531,527.40

Finding the Fourth Proportional to 811,693.80, 1,217,540.70 and 531,527.40

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Solution

The fourth proportional to 811,693.80, 1,217,540.70 and 531,527.40 is: 797,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,693.80 : 1,217,540.70 = 531,527.40 : x
  2. Step 2: Convert to fraction form
    811,693.80/1,217,540.70 = 531,527.40/x
  3. Step 3: Cross multiply
    811,693.80x = 1,217,540.70 × 531,527.40
  4. Step 4: Simplify right side
    811,693.80x = 647,156,242,665.18
  5. Step 5: Solve for x
    x = 647,156,242,665.18/811,693.80
  6. Step 6: Final answer
    x = 797,291.10

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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.