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Finding the Fourth Proportional to 347,746.40, 520,453.20 and 347,746.40

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Solution

The fourth proportional to 347,746.40, 520,453.20 and 347,746.40 is: 520,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,746.40 : 520,453.20 = 347,746.40 : x
  2. Step 2: Convert to fraction form
    347,746.40/520,453.20 = 347,746.40/x
  3. Step 3: Cross multiply
    347,746.40x = 520,453.20 × 347,746.40
  4. Step 4: Simplify right side
    347,746.40x = 180,985,726,668.48
  5. Step 5: Solve for x
    x = 180,985,726,668.48/347,746.40
  6. Step 6: Final answer
    x = 520,453.20

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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.