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Finding the Fourth Proportional to 347,276.90, 486,887.50 and 347,276.90

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Solution

The fourth proportional to 347,276.90, 486,887.50 and 347,276.90 is: 486,887.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,276.90 : 486,887.50 = 347,276.90 : x
  2. Step 2: Convert to fraction form
    347,276.90/486,887.50 = 347,276.90/x
  3. Step 3: Cross multiply
    347,276.90x = 486,887.50 × 347,276.90
  4. Step 4: Simplify right side
    347,276.90x = 169,084,781,648.75
  5. Step 5: Solve for x
    x = 169,084,781,648.75/347,276.90
  6. Step 6: Final answer
    x = 486,887.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.