Home / 811,430.03-1,119,726.90-443,834.21

Finding the Fourth Proportional to 811,430.03, 1,119,726.90 and 443,834.21

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Solution

The fourth proportional to 811,430.03, 1,119,726.90 and 443,834.21 is: 612,465.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,430.03 : 1,119,726.90 = 443,834.21 : x
  2. Step 2: Convert to fraction form
    811,430.03/1,119,726.90 = 443,834.21/x
  3. Step 3: Cross multiply
    811,430.03x = 1,119,726.90 × 443,834.21
  4. Step 4: Simplify right side
    811,430.03x = 496,973,098,478.62
  5. Step 5: Solve for x
    x = 496,973,098,478.62/811,430.03
  6. Step 6: Final answer
    x = 612,465.75

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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.