Home / 637,945.01-879,772.75-465,589.97

Finding the Fourth Proportional to 637,945.01, 879,772.75 and 465,589.97

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Solution

The fourth proportional to 637,945.01, 879,772.75 and 465,589.97 is: 642,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,945.01 : 879,772.75 = 465,589.97 : x
  2. Step 2: Convert to fraction form
    637,945.01/879,772.75 = 465,589.97/x
  3. Step 3: Cross multiply
    637,945.01x = 879,772.75 × 465,589.97
  4. Step 4: Simplify right side
    637,945.01x = 409,613,368,279.32
  5. Step 5: Solve for x
    x = 409,613,368,279.32/637,945.01
  6. Step 6: Final answer
    x = 642,082.56

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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.