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Finding the Fourth Proportional to 480,341.40, 720,526.78 and 164,793.88

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Solution

The fourth proportional to 480,341.40, 720,526.78 and 164,793.88 is: 247,195.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,341.40 : 720,526.78 = 164,793.88 : x
  2. Step 2: Convert to fraction form
    480,341.40/720,526.78 = 164,793.88/x
  3. Step 3: Cross multiply
    480,341.40x = 720,526.78 × 164,793.88
  4. Step 4: Simplify right side
    480,341.40x = 118,738,403,720.11
  5. Step 5: Solve for x
    x = 118,738,403,720.11/480,341.40
  6. Step 6: Final answer
    x = 247,195.86

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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.