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Finding the Fourth Proportional to 470,577.60, 706,255.20 and 218,246.40

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Solution

The fourth proportional to 470,577.60, 706,255.20 and 218,246.40 is: 327,549.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,577.60 : 706,255.20 = 218,246.40 : x
  2. Step 2: Convert to fraction form
    470,577.60/706,255.20 = 218,246.40/x
  3. Step 3: Cross multiply
    470,577.60x = 706,255.20 × 218,246.40
  4. Step 4: Simplify right side
    470,577.60x = 154,137,654,881.28
  5. Step 5: Solve for x
    x = 154,137,654,881.28/470,577.60
  6. Step 6: Final answer
    x = 327,549.92

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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.