Home / 821,687.31-1,133,907.30-459,114.15

Finding the Fourth Proportional to 821,687.31, 1,133,907.30 and 459,114.15

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Solution

The fourth proportional to 821,687.31, 1,133,907.30 and 459,114.15 is: 633,565.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,687.31 : 1,133,907.30 = 459,114.15 : x
  2. Step 2: Convert to fraction form
    821,687.31/1,133,907.30 = 459,114.15/x
  3. Step 3: Cross multiply
    821,687.31x = 1,133,907.30 × 459,114.15
  4. Step 4: Simplify right side
    821,687.31x = 520,592,886,218.30
  5. Step 5: Solve for x
    x = 520,592,886,218.30/821,687.31
  6. Step 6: Final answer
    x = 633,565.69

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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.