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Finding the Fourth Proportional to 324,063.10, 486,094.65 and 318,814.30

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Solution

The fourth proportional to 324,063.10, 486,094.65 and 318,814.30 is: 478,221.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,063.10 : 486,094.65 = 318,814.30 : x
  2. Step 2: Convert to fraction form
    324,063.10/486,094.65 = 318,814.30/x
  3. Step 3: Cross multiply
    324,063.10x = 486,094.65 × 318,814.30
  4. Step 4: Simplify right side
    324,063.10x = 154,973,925,573.50
  5. Step 5: Solve for x
    x = 154,973,925,573.50/324,063.10
  6. Step 6: Final answer
    x = 478,221.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.