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Finding the Fourth Proportional to 427,824.48, 590,404.80 and 234,228.98

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Solution

The fourth proportional to 427,824.48, 590,404.80 and 234,228.98 is: 323,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,824.48 : 590,404.80 = 234,228.98 : x
  2. Step 2: Convert to fraction form
    427,824.48/590,404.80 = 234,228.98/x
  3. Step 3: Cross multiply
    427,824.48x = 590,404.80 × 234,228.98
  4. Step 4: Simplify right side
    427,824.48x = 138,289,911,139.08
  5. Step 5: Solve for x
    x = 138,289,911,139.08/427,824.48
  6. Step 6: Final answer
    x = 323,239.83

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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.