Home / 873,673.28-1,205,707.92-491,724.80

Finding the Fourth Proportional to 873,673.28, 1,205,707.92 and 491,724.80

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Solution

The fourth proportional to 873,673.28, 1,205,707.92 and 491,724.80 is: 678,602.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,673.28 : 1,205,707.92 = 491,724.80 : x
  2. Step 2: Convert to fraction form
    873,673.28/1,205,707.92 = 491,724.80/x
  3. Step 3: Cross multiply
    873,673.28x = 1,205,707.92 × 491,724.80
  4. Step 4: Simplify right side
    873,673.28x = 592,876,485,820.42
  5. Step 5: Solve for x
    x = 592,876,485,820.42/873,673.28
  6. Step 6: Final answer
    x = 678,602.06

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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.