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Finding the Fourth Proportional to 426,803.22, 587,288.61 and 413,817.30

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Solution

The fourth proportional to 426,803.22, 587,288.61 and 413,817.30 is: 569,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,803.22 : 587,288.61 = 413,817.30 : x
  2. Step 2: Convert to fraction form
    426,803.22/587,288.61 = 413,817.30/x
  3. Step 3: Cross multiply
    426,803.22x = 587,288.61 × 413,817.30
  4. Step 4: Simplify right side
    426,803.22x = 243,030,186,910.95
  5. Step 5: Solve for x
    x = 243,030,186,910.95/426,803.22
  6. Step 6: Final answer
    x = 569,419.76

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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.