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Finding the Fourth Proportional to 470,854.60, 706,022.70 and 190,054.60

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Solution

The fourth proportional to 470,854.60, 706,022.70 and 190,054.60 is: 284,977.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,854.60 : 706,022.70 = 190,054.60 : x
  2. Step 2: Convert to fraction form
    470,854.60/706,022.70 = 190,054.60/x
  3. Step 3: Cross multiply
    470,854.60x = 706,022.70 × 190,054.60
  4. Step 4: Simplify right side
    470,854.60x = 134,182,861,839.42
  5. Step 5: Solve for x
    x = 134,182,861,839.42/470,854.60
  6. Step 6: Final answer
    x = 284,977.28

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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.