Home / 821,173.61-1,133,055.21-458,541.68

Finding the Fourth Proportional to 821,173.61, 1,133,055.21 and 458,541.68

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Solution

The fourth proportional to 821,173.61, 1,133,055.21 and 458,541.68 is: 632,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,173.61 : 1,133,055.21 = 458,541.68 : x
  2. Step 2: Convert to fraction form
    821,173.61/1,133,055.21 = 458,541.68/x
  3. Step 3: Cross multiply
    821,173.61x = 1,133,055.21 × 458,541.68
  4. Step 4: Simplify right side
    821,173.61x = 519,553,033,860.88
  5. Step 5: Solve for x
    x = 519,553,033,860.88/821,173.61
  6. Step 6: Final answer
    x = 632,695.73

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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.