Home / 821,783.11-1,134,038.92-459,209.94

Finding the Fourth Proportional to 821,783.11, 1,134,038.92 and 459,209.94

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Solution

The fourth proportional to 821,783.11, 1,134,038.92 and 459,209.94 is: 633,697.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,783.11 : 1,134,038.92 = 459,209.94 : x
  2. Step 2: Convert to fraction form
    821,783.11/1,134,038.92 = 459,209.94/x
  3. Step 3: Cross multiply
    821,783.11x = 1,134,038.92 × 459,209.94
  4. Step 4: Simplify right side
    821,783.11x = 520,761,944,410.87
  5. Step 5: Solve for x
    x = 520,761,944,410.87/821,783.11
  6. Step 6: Final answer
    x = 633,697.55

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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.