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Finding the Fourth Proportional to 383,451.42, 575,178.62 and 117,210.90

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Solution

The fourth proportional to 383,451.42, 575,178.62 and 117,210.90 is: 175,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,451.42 : 575,178.62 = 117,210.90 : x
  2. Step 2: Convert to fraction form
    383,451.42/575,178.62 = 117,210.90/x
  3. Step 3: Cross multiply
    383,451.42x = 575,178.62 × 117,210.90
  4. Step 4: Simplify right side
    383,451.42x = 67,417,203,124.90
  5. Step 5: Solve for x
    x = 67,417,203,124.90/383,451.42
  6. Step 6: Final answer
    x = 175,816.80

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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.