Home / 825,585.27-1,139,319.89-618,486.76

Finding the Fourth Proportional to 825,585.27, 1,139,319.89 and 618,486.76

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Solution

The fourth proportional to 825,585.27, 1,139,319.89 and 618,486.76 is: 853,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,585.27 : 1,139,319.89 = 618,486.76 : x
  2. Step 2: Convert to fraction form
    825,585.27/1,139,319.89 = 618,486.76/x
  3. Step 3: Cross multiply
    825,585.27x = 1,139,319.89 × 618,486.76
  4. Step 4: Simplify right side
    825,585.27x = 704,654,269,957.62
  5. Step 5: Solve for x
    x = 704,654,269,957.62/825,585.27
  6. Step 6: Final answer
    x = 853,520.88

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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.