Home / 821,683.28-1,133,881.48-459,035.12

Finding the Fourth Proportional to 821,683.28, 1,133,881.48 and 459,035.12

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Solution

The fourth proportional to 821,683.28, 1,133,881.48 and 459,035.12 is: 633,445.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,683.28 : 1,133,881.48 = 459,035.12 : x
  2. Step 2: Convert to fraction form
    821,683.28/1,133,881.48 = 459,035.12/x
  3. Step 3: Cross multiply
    821,683.28x = 1,133,881.48 × 459,035.12
  4. Step 4: Simplify right side
    821,683.28x = 520,491,421,237.58
  5. Step 5: Solve for x
    x = 520,491,421,237.58/821,683.28
  6. Step 6: Final answer
    x = 633,445.31

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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.