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Finding the Fourth Proportional to 347,793.60, 521,690.40 and 277,809.60

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Solution

The fourth proportional to 347,793.60, 521,690.40 and 277,809.60 is: 416,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,793.60 : 521,690.40 = 277,809.60 : x
  2. Step 2: Convert to fraction form
    347,793.60/521,690.40 = 277,809.60/x
  3. Step 3: Cross multiply
    347,793.60x = 521,690.40 × 277,809.60
  4. Step 4: Simplify right side
    347,793.60x = 144,930,601,347.84
  5. Step 5: Solve for x
    x = 144,930,601,347.84/347,793.60
  6. Step 6: Final answer
    x = 416,714.40

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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.