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Finding the Fourth Proportional to 382,507.20, 572,448.60 and 351,014.40

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Solution

The fourth proportional to 382,507.20, 572,448.60 and 351,014.40 is: 525,317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,507.20 : 572,448.60 = 351,014.40 : x
  2. Step 2: Convert to fraction form
    382,507.20/572,448.60 = 351,014.40/x
  3. Step 3: Cross multiply
    382,507.20x = 572,448.60 × 351,014.40
  4. Step 4: Simplify right side
    382,507.20x = 200,937,701,859.84
  5. Step 5: Solve for x
    x = 200,937,701,859.84/382,507.20
  6. Step 6: Final answer
    x = 525,317.44

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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.