Home / 289,840.24-400,012.86-193,038.76

Finding the Fourth Proportional to 289,840.24, 400,012.86 and 193,038.76

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Solution

The fourth proportional to 289,840.24, 400,012.86 and 193,038.76 is: 266,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,840.24 : 400,012.86 = 193,038.76 : x
  2. Step 2: Convert to fraction form
    289,840.24/400,012.86 = 193,038.76/x
  3. Step 3: Cross multiply
    289,840.24x = 400,012.86 × 193,038.76
  4. Step 4: Simplify right side
    289,840.24x = 77,217,986,478.45
  5. Step 5: Solve for x
    x = 77,217,986,478.45/289,840.24
  6. Step 6: Final answer
    x = 266,415.69

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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.