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Finding the Fourth Proportional to 288,609.60, 432,914.40 and 101,596.80

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Solution

The fourth proportional to 288,609.60, 432,914.40 and 101,596.80 is: 152,395.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,609.60 : 432,914.40 = 101,596.80 : x
  2. Step 2: Convert to fraction form
    288,609.60/432,914.40 = 101,596.80/x
  3. Step 3: Cross multiply
    288,609.60x = 432,914.40 × 101,596.80
  4. Step 4: Simplify right side
    288,609.60x = 43,982,717,713.92
  5. Step 5: Solve for x
    x = 43,982,717,713.92/288,609.60
  6. Step 6: Final answer
    x = 152,395.20

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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.