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Finding the Fourth Proportional to 347,615.46, 479,461.48 and 319,027.24

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Solution

The fourth proportional to 347,615.46, 479,461.48 and 319,027.24 is: 440,030.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,615.46 : 479,461.48 = 319,027.24 : x
  2. Step 2: Convert to fraction form
    347,615.46/479,461.48 = 319,027.24/x
  3. Step 3: Cross multiply
    347,615.46x = 479,461.48 × 319,027.24
  4. Step 4: Simplify right side
    347,615.46x = 152,961,272,650.72
  5. Step 5: Solve for x
    x = 152,961,272,650.72/347,615.46
  6. Step 6: Final answer
    x = 440,030.12

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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.