Home / 493,541.28-681,045.84-289,570.88

Finding the Fourth Proportional to 493,541.28, 681,045.84 and 289,570.88

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Solution

The fourth proportional to 493,541.28, 681,045.84 and 289,570.88 is: 399,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,541.28 : 681,045.84 = 289,570.88 : x
  2. Step 2: Convert to fraction form
    493,541.28/681,045.84 = 289,570.88/x
  3. Step 3: Cross multiply
    493,541.28x = 681,045.84 × 289,570.88
  4. Step 4: Simplify right side
    493,541.28x = 197,211,043,209.14
  5. Step 5: Solve for x
    x = 197,211,043,209.14/493,541.28
  6. Step 6: Final answer
    x = 399,583.68

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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.