Home / 879,351.52-1,213,436.28-516,789.04

Finding the Fourth Proportional to 879,351.52, 1,213,436.28 and 516,789.04

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Solution

The fourth proportional to 879,351.52, 1,213,436.28 and 516,789.04 is: 713,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,351.52 : 1,213,436.28 = 516,789.04 : x
  2. Step 2: Convert to fraction form
    879,351.52/1,213,436.28 = 516,789.04/x
  3. Step 3: Cross multiply
    879,351.52x = 1,213,436.28 × 516,789.04
  4. Step 4: Simplify right side
    879,351.52x = 627,090,570,242.37
  5. Step 5: Solve for x
    x = 627,090,570,242.37/879,351.52
  6. Step 6: Final answer
    x = 713,128.43

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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.