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Finding the Fourth Proportional to 383,430.93, 529,174.04 and 230,518.92

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Solution

The fourth proportional to 383,430.93, 529,174.04 and 230,518.92 is: 318,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,430.93 : 529,174.04 = 230,518.92 : x
  2. Step 2: Convert to fraction form
    383,430.93/529,174.04 = 230,518.92/x
  3. Step 3: Cross multiply
    383,430.93x = 529,174.04 × 230,518.92
  4. Step 4: Simplify right side
    383,430.93x = 121,984,628,192.84
  5. Step 5: Solve for x
    x = 121,984,628,192.84/383,430.93
  6. Step 6: Final answer
    x = 318,139.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.