Home / 873,570.72-1,205,434.80-491,591.28

Finding the Fourth Proportional to 873,570.72, 1,205,434.80 and 491,591.28

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Solution

The fourth proportional to 873,570.72, 1,205,434.80 and 491,591.28 is: 678,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,570.72 : 1,205,434.80 = 491,591.28 : x
  2. Step 2: Convert to fraction form
    873,570.72/1,205,434.80 = 491,591.28/x
  3. Step 3: Cross multiply
    873,570.72x = 1,205,434.80 × 491,591.28
  4. Step 4: Simplify right side
    873,570.72x = 592,581,236,288.54
  5. Step 5: Solve for x
    x = 592,581,236,288.54/873,570.72
  6. Step 6: Final answer
    x = 678,343.75

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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.