Home / 821,855.16-1,134,204.93-459,279.72

Finding the Fourth Proportional to 821,855.16, 1,134,204.93 and 459,279.72

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Solution

The fourth proportional to 821,855.16, 1,134,204.93 and 459,279.72 is: 633,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,855.16 : 1,134,204.93 = 459,279.72 : x
  2. Step 2: Convert to fraction form
    821,855.16/1,134,204.93 = 459,279.72/x
  3. Step 3: Cross multiply
    821,855.16x = 1,134,204.93 × 459,279.72
  4. Step 4: Simplify right side
    821,855.16x = 520,917,322,673.02
  5. Step 5: Solve for x
    x = 520,917,322,673.02/821,855.16
  6. Step 6: Final answer
    x = 633,831.05

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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.