Home / 821,327.64-1,133,420.18-458,756.64

Finding the Fourth Proportional to 821,327.64, 1,133,420.18 and 458,756.64

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Solution

The fourth proportional to 821,327.64, 1,133,420.18 and 458,756.64 is: 633,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,327.64 : 1,133,420.18 = 458,756.64 : x
  2. Step 2: Convert to fraction form
    821,327.64/1,133,420.18 = 458,756.64/x
  3. Step 3: Cross multiply
    821,327.64x = 1,133,420.18 × 458,756.64
  4. Step 4: Simplify right side
    821,327.64x = 519,964,033,485.00
  5. Step 5: Solve for x
    x = 519,964,033,485.00/821,327.64
  6. Step 6: Final answer
    x = 633,077.48

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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.