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Finding the Fourth Proportional to 350,923.20, 525,607.20 and 288,715.20

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Solution

The fourth proportional to 350,923.20, 525,607.20 and 288,715.20 is: 432,433.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,923.20 : 525,607.20 = 288,715.20 : x
  2. Step 2: Convert to fraction form
    350,923.20/525,607.20 = 288,715.20/x
  3. Step 3: Cross multiply
    350,923.20x = 525,607.20 × 288,715.20
  4. Step 4: Simplify right side
    350,923.20x = 151,750,787,869.44
  5. Step 5: Solve for x
    x = 151,750,787,869.44/350,923.20
  6. Step 6: Final answer
    x = 432,433.04

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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.