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Finding the Fourth Proportional to 283,399.83, 391,127.54 and 162,538.52

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Solution

The fourth proportional to 283,399.83, 391,127.54 and 162,538.52 is: 224,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,399.83 : 391,127.54 = 162,538.52 : x
  2. Step 2: Convert to fraction form
    283,399.83/391,127.54 = 162,538.52/x
  3. Step 3: Cross multiply
    283,399.83x = 391,127.54 × 162,538.52
  4. Step 4: Simplify right side
    283,399.83x = 63,573,288,714.51
  5. Step 5: Solve for x
    x = 63,573,288,714.51/283,399.83
  6. Step 6: Final answer
    x = 224,323.67

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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.