Home / 811,001.29-1,119,205.35-443,500.03

Finding the Fourth Proportional to 811,001.29, 1,119,205.35 and 443,500.03

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Solution

The fourth proportional to 811,001.29, 1,119,205.35 and 443,500.03 is: 612,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,001.29 : 1,119,205.35 = 443,500.03 : x
  2. Step 2: Convert to fraction form
    811,001.29/1,119,205.35 = 443,500.03/x
  3. Step 3: Cross multiply
    811,001.29x = 1,119,205.35 × 443,500.03
  4. Step 4: Simplify right side
    811,001.29x = 496,367,606,301.16
  5. Step 5: Solve for x
    x = 496,367,606,301.16/811,001.29
  6. Step 6: Final answer
    x = 612,042.93

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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.