Home / 821,595.08-1,133,780.30-459,021.68

Finding the Fourth Proportional to 821,595.08, 1,133,780.30 and 459,021.68

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Solution

The fourth proportional to 821,595.08, 1,133,780.30 and 459,021.68 is: 633,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,595.08 : 1,133,780.30 = 459,021.68 : x
  2. Step 2: Convert to fraction form
    821,595.08/1,133,780.30 = 459,021.68/x
  3. Step 3: Cross multiply
    821,595.08x = 1,133,780.30 × 459,021.68
  4. Step 4: Simplify right side
    821,595.08x = 520,429,738,056.90
  5. Step 5: Solve for x
    x = 520,429,738,056.90/821,595.08
  6. Step 6: Final answer
    x = 633,438.24

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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.